Squash (5)
'squash' is the definition.
(I know that squash can be written as crush)
This is all the clue.
(Other definitions for crush that I've seen before include "Intense infatuation; pressing crowd" , "Fruit drink; crowd" , "Steamroller" , "stampede" , "Deform; violently subdue (rebellion)" .)
'squash' is the definition.
(butternut squash is a kind of squash)
This is the entire clue.
(Other definitions for butternut that I've seen before include "Wood" , "species of tree" , "Variety of pumpkin" , "sort of a squash" .)
(Another definition for stepon that I've seen is " Treat harshly".)
(Other definitions for nix that I've seen before include "water sprite" , "Watch out for" , "0" , "Nothing (sl.)" , "Cancel" .)