Desert spring's cool (4,4)

I believe the answer is:

jump ship

'desert' is the definition.
(I know that desert can be written as jump ship)

'spring's cool' is the wordplay.
'spring's' becomes 'jump's'.
'cool' becomes 'hip' (hip can mean cool or fashionable).
'jumps'+'hip'='JUMP SHIP'

(Other definitions for jump ship that I've seen before include "(Sailor) desert" , "Unofficially, leave" , "Desert (originally from navy)" , "Defect" .)

I've seen this clue in The Irish Times.

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