Food divided by English conspirator (5)
I believe the answer is:
oates
'conspirator' is the definition.
(titus oates)
'food divided by english' is the wordplay.
'food' becomes 'oats' (I've seen this before).
'divided by' means one lot of letters goes inside another.
'english' becomes 'e' (abbreviation).
'oats' placed around 'e' is 'OATES'.
(Other definitions for oates that I've seen before include "Popish Plot perjurer" , "Captain on Scott expedition who died in blizzard" , "sacrifice" , "Titus --, English conspirator" , "Self-sacrificing member of Scott's Antarctic team" .)