Improvises stir-fry ingredient (7)
I believe the answer is:
noodles
'improvises' is the definition.
(I've seen this in another clue)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for noodles that I've seen before include "On instrument casually plays" , "Simpletons (colloq.)" , "idiots!" , "Narrow strips of pasta, or slang heads" , "Egg pasta; simpletons" .)