Boots, maybe Hush Puppies' first with zip set in (4)
I believe the answer is:
shop
'boots maybe hush puppies' first with zip set in' is the definition.
I can't judge whether this definition defines the answer.
'hush puppies' first with zip set in' is the wordplay.
'hush' becomes 'sh' (both are used to tell someone to be quiet).
'puppies' first' becomes 'p' (1st letter of 'puppies').
'with' is a charade indicator (letters next to each other).
'zip' becomes 'o' (zip can mean zero).
'set in' is an insertion indicator.
'sh'+'p'='shp'
'shp' going around 'o' is 'SHOP'.
Can you help me to learn more?
(Other definitions for shop that I've seen before include "Make purchase; inform on (someone)" , "Inform on; store" , "Retail outlet" , "Store, outlet" , "Where goods are bought and sold" .)