"Suspend Jonathan Gullis" - constituents (4)
I believe the answer is:
hang
'suspend' is the definition.
(to hang is to suspend from something)
'jonathan gullis constituents' is the wordplay.
'constituents' indicates the answer is hidden within the clue (I've seen 'constituent' mean this).
'HANG' is hidden in the letters of 'jonathan gullis'.
(Other definitions for hang that I've seen before include "Be suspended" , "Apply most severe sanction" , "Suspend from a height" , "Go to the gallows" , "Suspend (something)" .)