Across clues:
8ac UMBRAGE (offence taken)
Anagram of ‘rumba’ & ‘eg’ [for example] (anagram pointer being ‘mangled’)
9ac CHEERIO (a word of farewell)
Cheer = applause, io = ten (ten follow the applause) (a charade clue)
10ac TALON (a claw)
Found in the word ‘Catalonia’ (a hidden word clue, pointer being ‘into’)
11ac TRADE NAME (brand)
Trade = swap, name = handle (a charade clue)
12ac COCKSCOMB (crest)
Cocks = birds, comb = search (a charade clue)
15ac ECLAT (splendour)
Found backwards in the words ‘coastal ceremony’ (a reversed hidden word clue, pointer being ‘returned in’)
16ac COUNTER-ATTACK (retaliation)
Counter = bar, attack = charge (a charade clue)
20ac TENOR (a singer)
Found in the last letters of ‘at home in disco fever’ (a last letters clue, pointer being ‘at last’)
21ac SIDE ISSUE (not the main point)
Si = ‘South Island’, de = ‘ed’ [journalist] backwards, issue = edition (a charade clue with a reversal)
23ac OPERATORS (wheeler-dealers)
Anagram of ‘a troopers’ (anagram pointer being ‘disturbed’)
25ac BULLS (crest)
Anagram of ‘bus’ & ‘L’ [left] & ‘L’ [50] (anagram pointer being ‘quaking’)
27ac BABY DOC (was a Caribbean ruler)
Baby = tot, doc = dwarf (dwarf is after a tot) (a charade clue)
28ac AIRPORT (O’Hare)
Air = song, port = left (a charade clue)
Down clues:
1d JUSTICE (equity)
Just = only, i = one, ce = church (a charade clue)
2d ABEL (first victim)
Ab = first letters of ‘act bravely’, el = last letters of ‘be successful’ (a charade clue with initial letters & last letters)
3d PAINTS (depicts)
Paints; ‘i’ [initial letter of ‘Iranian’] inside ‘pants’ [trousers] (a container clue, pointer being ‘in’)
4d DESTROYERS
Destroyers = they demolish & ships (a double definition clue)
5d TENEMENT (apartment building)
Tenement; ‘men’ [males] inside ‘tenet’ [principle] (a container clue, pointer being ‘in’)
6d DREADLOCKS (do [hairstyle])
Dreadlocks; ‘dead’ [late] around ‘r’ [right], locks = some rugby players (a charade clue with a container)
7d MOLESTS (abuses)
Molests; ‘moles’ [secret agents] around ‘st’ [street] (a container clue, pointer being ‘around’)
9d CHA (tea)
Last letter removed from ‘chap’ [guy] (a deletion clue, pointer being ‘mostly’)
13d CROWN DERBY (china)
Cr = King Charles, own = initial letter missing from ‘town’, derby = horse race (a charade clue)
14d BRANDY SNAP (a sweet)
Brandy = a drink, snap = speak sharply (speak sharply after a drink) (a charade clue)
17d NORMANDY (a French region)
Norman = Norman Kirk, dy = first and last letters of Dahomey (a charade clue)
18d STOODY BY
Stood by = morally supported & did nothing to help (a double definition clue)
19d TEASETS (items of crockery)
Anagram of ‘estates’ (anagram pointer being ‘reorganised’)
22d INBORN (natural)
Inborn; ‘rob’ upwards [a down clue] inside ‘inn’ [pub] (a container clue with a reversal)
24d ORC (Tolkien’s villain)
Last letter removed from ‘Orca’ [marine creature] (a deletion clue, pointer being ‘almost’)
26d LOOM
Loom = emerge & a textile machine (a double definition clue)