Reportedly get hold of father’s capital (7)
I believe the answer is:
baghdad
'capital' is the definition.
(capital of Iraq)
'reportedly get hold of father's' is the wordplay.
'reportedly' indicates a 'sounds like' (homophone) clue.
'get' becomes 'be' ('get' can mean 'come to be').
'hold of' becomes 'agh' (I am not sure about this - if you are sure you should believe this answer much more).
'father' becomes 'dad' (informal term for father).
'be' sounds like 'b'.
'b'+'agh'+'dad'='BAGHDAD'
Can you help me to learn more?
(Other definitions for baghdad that I've seen before include "capital abroad" , "Capital of Iraq" , "Iraqi capital" , "city abroad" .)