Crossword Genius

Killjoy takes booty to harbour (10)

Ross

I believe the answer is:

spoilsport

'killjoy' is the definition.
('spoilsport' can be a synonym of 'killjoy')

'booty to harbour' is the wordplay.
'booty' becomes 'spoils' (I've seen this before).
'to harbour' becomes 'port' (I've seen this before).
'spoils'+'port'='SPOILSPORT'

'takes' acts as a link.

(Other definitions for spoilsport that I've seen before include "One who won't play?" , "misery" , "Party pooper" , "Person marring others' pleasure" , "Killjoy" .)

I've seen this clue in The Telegraph.
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