Return to office for a roll of film on shock therapy (2-5)
I believe the answer is:
re-elect
'return to office' is the definition.
(I've seen this before)
'roll of film on shock therapy' is the wordplay.
'roll of film' becomes 'reel' (I've seen this in another clue).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'shock therapy' becomes 'ECT' (ECT is an example).
'reel'+'ect'='RE-ELECT'
'for a' is the link.
(Other definitions for re-elect that I've seen before include "Put into power again" , "Vote in again" , "Bring to power again" .)