Date after work for Aida, perhaps (5)
I believe the answer is:
opera
'for aida perhaps' is the definition.
(Aida is an example)
'date after work' is the wordplay.
'date' becomes 'era' (I've seen this before).
'after' says to put letters next to each other.
'work' becomes 'op' (abbreviation for opus).
'era' after 'op' is 'OPERA'.
(Other definitions for opera that I've seen before include "Musical play" , "La Boheme or Rigoletto" , "Glyndebourne production" , "Drama with singing" , "E.g. Falstaff, Fidelio" .)