Deny any connection with row about pig (6)
I believe the answer is:
disown
'deny any connection with' is the definition.
(I've seen this before)
'row about pig' is the wordplay.
'row' becomes 'din' (both can mean a loud disturbance).
'about' indicates putting letters inside.
'pig' becomes 'sow' (I've seen this in another clue).
'din' going around 'sow' is 'DISOWN'.
(Other definitions for disown that I've seen before include "Cast aside" , "Refuse responsibility for" , "Disclaim or deny" , "Disclaim all connection or relationship with" , "Reject all connection with, refuse to acknowledge" .)