Grant complete with round wife (5)
I believe the answer is:
allow
'grant' is the definition.
(I know that grant can be written as allow)
'complete with round wife' is the wordplay.
'complete with' becomes 'all' (similar in meaning. I am not sure about the 'with' bit.).
'round' becomes 'o' (round can mean a round object).
'wife' becomes 'w' (abbreviation).
'all'+'o'+'w'='ALLOW'
Can you help me to learn more?
(Other definitions for allow that I've seen before include "Permit or agree" , "Tolerate" , "OK" , "Acknowledge - concede" , "Give leave to" .)