Dog given large drink retires somewhere secluded (5,2)

I believe the answer is:

curls up

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'retires somewhere secluded' is the definition.
I can't tell whether this definition defines the answer.

'dog given large drink' is the wordplay.
'dog' becomes 'cur' (a cur is an aggressive or scruffy dog).
'given' means one lot of letters go next to another.
'large' becomes 'L' (eg in clothes sizes).
'drink' becomes 'sup' (to sup is to drink).
'cur'+'l'+'sup'='CURLS UP'

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I've seen this clue in The Times.

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