Remove from head office (4)
I believe the answer is:
doff
'remove' is the definition.
(I've seen this in another clue)
'from head office' is the wordplay.
'from' indicates a hidden word.
'DOFF' can be found hidden inside 'head office'.
(Other definitions for doff that I've seen before include "Take off hat as mark of respect" , "Remove (e.g. hat)" , "shed" , "Take off (clothing) - remove (hat)" , "Remove one's cap" .)