Fill in forms at election (4)

I believe the answer is:

sate

'fill' is the definition.
('sate' can be a synonym of 'fill')

'in forms at election' is the wordplay.
'in' says the answer is hidden in the clue.
'SATE' is hidden within 'forms at election'.

(Other definitions for sate that I've seen before include "cloy" , "Fill to satisfaction" , "Stuff with teas" , "Satisfy to the full" , "Overfill, gratify" .)

I've seen this clue in The Telegraph.

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