Told to forcibly seize everything else (4)
I believe the answer is:
rest
'everything else' is the definition.
(I've seen this in another clue)
'told to forcibly seize' is the wordplay.
'told' shows a homophone (sound like).
'to forcibly seize' becomes 'wrest' (I've seen this in another clue).
'wrest' is a homophone of 'REST'.
(Other definitions for rest that I've seen before include "Support for putting things on" , "'''God ... ye, merry gentlemen'' (carol) (4)'" , "Surplus" , "Repose, others" , "Remain" .)