Fetching dresses make an impression (4)
I believe the answer is:
etch
'make an impression' is the definition.
(to etch is to make an impression in something)
'fetching dresses' is the wordplay.
'ETCH' is hidden within the letters.
But, I am uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for etch that I've seen before include "Engrave (metal/glass)" , "Make a deep impression" , "Carve into surface, impress deeply" , "Engrave; fix firmly" , "Wear away by chemical reaction" .)