Entertainment from Dad’s era? (7)
I believe the answer is:
pastime
'entertainment' is the definition.
(thesaurus)
'dad's era?' is the wordplay.
'dad's' becomes 'pa's' ('pa' can be a synonym of 'dad').
'era?' becomes 'time' (era is a kind of time).
'pas'+'time'='PASTIME'
'from' is the link.
(Other definitions for pastime that I've seen before include "Hobby; regular activity" , "Leisure pursuit" , "diversion" , "doing the crossword, say" , "Leisure activity" .)