Blew notes? Groovy! (6)
I believe the answer is:
fluted
This clue is a double definition.
'blew notes?' is the first definition.
(played notes on flute by blowing?)
'groovy' is the second definition.
(having grooves)
(Other definitions for fluted that I've seen before include "Groovy?" , "Grooved" , "Ornamented with grooves" .)