Crossword Genius

Kinky sex in pool is a blast (9)

Ross

I believe the answer is:

explosion

'blast' is the definition.
(thesaurus)

'kinky sex in pool' is the wordplay.
'kinky' indicates anagramming the letters.
'sex'+'in'+'pool'='sexinpool'
'sexinpool' is an anagram of 'EXPLOSION'.

'is a' acts as a link.

(Other definitions for explosion that I've seen before include "Big bang" , "sudden expansion" , "Report" , "Sudden outburst" , "Violent outburst" .)

I've seen this clue in The Times.
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