Fir-cone comes from it! (7)
I believe the answer is:
conifer
'it' is the definition.
The definition suggests a singular noun which matches the answer.
'fir-cone comes' is the wordplay.
'fir-cone' anagrams to 'CONIFER'.
However, I am not clear how this is indicated.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for conifer that I've seen before include "one branching out" , "Fir or pine, for example" , "Evergreen (generally)" , "Fir or larch, for example" , "The tree keeps its leaves" .)