Rather more coarse provisions supplier, we hear (7)
I believe the answer is:
grosser
'provisions supplier we hear' is the definition.
I can't tell whether this definition defines the answer.
'rather more coarse' is the wordplay.
I cannot really understand how this works, but
'coarse' could be 'gross' (synonyms) and 'gross' is located in the answer.
The remaining letters 'er' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for grosser that I've seen before include "more vulgar" , "More corpulent" .)