Join in a bit of housework (3)

I believe the answer is:

sew

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'join' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?

'bit of housework' is the wordplay.
'bit of' indicates the answer is hidden within the clue.
'SEW' can be found hidden inside 'housework'.

'in a' acts as a link.

Can you help me to learn more?

(Other definitions for sew that I've seen before include "Make stitches" , "Work with needle and thread" , "Tack" , "Do some needlework" , "Fasten with stitches" .)

I've seen this clue in the Evening Standard.

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