Make a fuss, getting it set in stone (7)
I believe the answer is:
agitate
'make a fuss' is the definition.
(agitate can mean to make a fuss or disturb)
'it set in stone' is the wordplay.
'set in' means one lot of letters goes inside another.
'stone' becomes 'agate' (agate is a type of stone).
'it' going into 'agate' is 'AGITATE'.
'getting' acts as a link.
(Other definitions for agitate that I've seen before include "Disturb or stir up" , "Fluster" , "Keep moving" , "Perturb" , "Stir (up public opinion?)" .)