Mellow cheese (4)
I believe the answer is:
edam
'mellow cheese' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for edam that I've seen before include "Made into a nice cheese" , "Danish cheese" , "Spherical cheese" , "Dutch market town famous for its cheese" , "Made (anag) - Dutch cheese" .)