CRYPTIC CROSSWORD

ACROSS 1 Is it a fault to change one’s allegiance? (6) 4 Jump over insects in stretchy trousers (3-5) 9 South Africa is mistaken, they say, to adopt South Asian dress (6) 10 Stuff like quicklime is cooked in roast tin (8) 12 Remove data diagram from monks’ liqueur to employ again (5) 13 No wiggle room in a tipsy frenzy (1,5,3) 14 Local rules formed by river flowing upstream (3-4) 15 Intellectuals start off in wartime entertainment (4) 19 Put down face up (4) 21 About how much does one pay for whimsy? (7) 24 He’s initially to take possession of spa town (9) 26 Double-winning conker making round trip, we hear (5) 27 Horribly bespoils what might be (8) 28 Dispose of a railway system that’s basically a26(6) 29 Mean to be centre of New Orleans game (8) 30 Fish at beginning of dive slipped along (6)

DOWN 1 Give a picture of half-dead writer (8) 2 Large sums of money are paid to purchase music (8) 3 Nationalist involved on camera in Irish county (9) 5 Loch where the Lady of the Lake ran kite fluently (7) 6 Chop up and add egg for dog (5) 7 Inform officially unless you’re first (6) 8 Overview of empty treasury was minimal (6) 11 Signs of pleasure from shaggy dog story told by jokey people? (4) 16 Irish hero with troubled past doesn’t miss good opportunity (2,7) 17 Walk to it, looking lively, with a certain amount of energy (8) 18 Gave away Derby tea set (8) 20 Spoke slowly when selection started off (7) 21 Crate one picked oddly in French city (4) 22 Electronic gadget has to contribute something (4,2) 23 An intervention of provoked response has come up (6) 25 Put aside for the time being as 30 here (2,3)