Salt produced by burn covering food (8)
I believe the answer is:
seafarer
'salt' is the definition.
('seafarer' can be a synonym of 'salt')
'burn covering food' is the wordplay.
'burn' becomes 'sear' (I've seen this before**).
'covering' indicates putting letters inside.
'food' becomes 'fare' (fare is a kind of food).
'sear' enclosing 'fare' is 'SEAFARER'.
'produced by' is the link.
(Other definitions for seafarer that I've seen before include "Marine traveller" , "A traveller on the ocean, like sailor" , "Sinbad?" , "Rating maybe" , "Jack" .)