Consume what makes you ’ot (3)
I believe the answer is:
eat
''ot' is the definition.
('heat' - thesaurus - said with the 'H' dropped, a cockney accent, like 'hot' was)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for eat that I've seen before include "Worry" , "Consume for tea" , "to do etching?" , "Partake of" , "Be corrosive" .)