Shopkeeper sounds more repulsive (6)
I believe the answer is:
grocer
'shopkeeper' is the definition.
(I've seen this before)
'sounds more repulsive' is the wordplay.
'sounds' indicates a 'sounds like' (homophone) clue.
'more repulsive' becomes 'grosser' (I've seen this in another clue).
'grosser' sounds like 'GROCER'.
(Other definitions for grocer that I've seen before include "Market trader" , "Merchant who sells foodstuffs" , "Shopkeeper who sells food and household stores" , "Retailer of food and small household goods" , "Food dealer" .)