Improve the quality of (6)
'improve the quality of' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for enhance that I've seen before include "Boost" , "produce better image" , "Add function, appeal, to" , "Intensify, increase or improve" , "'Improve, augment (7)'" .)
'improve the quality of' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for enrich that I've seen before include "Decorate" , "develop" , "Adorn, enhance or make wealthy" , "Improve the quality by adding things" , "Make fuller flavoured" .)