Improve quality. Hence an improvement? (7)
I believe the answer is:
enhance
'improve' is the definition.
(I know that enhance is a kind of improve)
'quality hence an improvement?' is the wordplay.
'hence an' can be anagrammed to 'ENHANCE'.
Though, I'm not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for enhance that I've seen before include "To improve matters" , "produce better image" , "Improve, make more attractive" , "Add function, appeal, to" , "Increase attractiveness of, improve" .)