Crossword Genius

Laugh when the singer changes key in it (7)

Ross

I believe the answer is:

snigger

'laugh' is the definition.
(snigger is a kind of laugh)

'the singer changes key in it' is the wordplay.
'changes' indicates anagramming the letters.
'key' becomes 'g' (I've seen this in other clues**).
'in it' is an insertion indicator.
'singer' is an anagram of 'sniger'.
'sniger' going around 'g' is 'SNIGGER'.

'when' acts as a link.

(Other definitions for snigger that I've seen before include "Laugh in a scornful way" , "Giggle" , "Titter" , "Surreptitious laugh" , "Dirty laugh" .)

I've seen this clue in the Evening Standard.
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