Wire about father being competent (7)
I believe the answer is:
capable
'competent' is the definition.
(synonyms)
'wire about father' is the wordplay.
'wire' becomes 'cable' (synonyms).
'about' is an insertion indicator.
'father' becomes 'pa' (pa can mean dad or father).
'cable' enclosing 'pa' is 'CAPABLE'.
'being' acts as a link.
(Other definitions for capable that I've seen before include "'Clever, able (7)'" , "Competent, having a certain ability" , "Adept" , "Efficient" , "qualified" .)