Clever dad featured in The Wire (7)
I believe the answer is:
capable
'clever' is the definition.
(thesaurus)
'dad featured in the wire' is the wordplay.
'dad' becomes 'pa' (pa can mean someone's father).
'featured in' is an insertion indicator.
'the wire' becomes 'cable' (cable is a kind of wire).
'pa' going within 'cable' is 'CAPABLE'.
(Other definitions for capable that I've seen before include "qualified" , "Competent, having a certain ability" , "Able, proficient" , "'Clever, able (7)'" , "Efficient" .)