Taken home, had a nap (7,3)

I believe the answer is:

dropped off

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'taken home' is the definition.
The definition and answer can be both related to bodily activities as well as being past participle verbs.
Maybe you can see a link between them that I don't see?

'had a nap' is the wordplay.
'had' becomes 'dropped' (dropping is a kind of having).
'a nap' becomes 'off' (I can't explain this - if you can you should believe this answer much more).
'dropped'+'off'='DROPPED OFF'

Can you help me to learn more?

I've seen this clue in the Evening Standard.

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