Crossword Genius

Wet blanket left on babies (10)

Ross

I believe the answer is:

spoilsport

'wet blanket' is the definition.
(synonyms)

'left on babies' is the wordplay.
'left' becomes 'port' (left side of a ship - opposite of starboard).
'on' means one lot of letters go next to another.
'babies' becomes 'spoils' ('spoil' can be a synonym of 'baby').
'port' put after 'spoils' is 'SPOILSPORT'.

(Other definitions for spoilsport that I've seen before include "Person marring others' pleasure" , "Killjoy" , "One marring others' pleasure" , "One who ruins others' enjoyment" , "One who reduces others' pleasure" .)

I've seen this clue in The Sunday Times and The Times.
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