Drake set off with raft during the night (5,4)

I believe the answer is:

after dark

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'during the night' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'drake set off with raft' is the wordplay.
'set off with' is an anagram indicator (letters made to move or set off).
'drake' anagrammed with 'raft' makes 'AFTER DARK'.

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I've seen this clue in The Independent.

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