Sucking noises suppress last couple of kisses (9)

I believe the answer is:

squelches

'sucking noises' is the definition.

'suppress last couple of kisses' is the wordplay.
'suppress' becomes 'squelch' (squelching is a kind of suppressing).
'last' says to take the final letters.
'of kisses' becomes 's' (I am not sure about this - if you are sure you should believe this answer much more).
The final letter of 'couple' is 'e'.
'squelch'+'e'+'s'='SQUELCHES'

I've seen this clue in The Independent.

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