Do wrong in giving somebody a hand (7)
I believe the answer is:
misdeal
'do wrong' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'giving somebody a hand' is the wordplay.
'giving somebody' becomes 'mis' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a hand' becomes 'deal' ('deal' can be a synonym of 'hand').
'mis'+'deal'='MISDEAL'
'in' is the link.
Can you help me to learn more?
(Other definitions for misdeal that I've seen before include "Give out the cards wrongly" , "Faulty distribution" , "Right hand that isn't" , "Give out cards incorrectly" , "Faulty issue of cards" .)