Like hard plaster (3)
I believe the answer is:
set
(Other definitions for set that I've seen before include "declined" , "Solidify like jelly" , "box?" , "Arrange; a party" , "Prepared" .)
I believe the answer is:
set
(Other definitions for set that I've seen before include "declined" , "Solidify like jelly" , "box?" , "Arrange; a party" , "Prepared" .)