Rotate rapidly (4)
'rotate rapidly' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for whirl that I've seen before include "quick turn" , "Spin rapidly" , "Circular movement - brief try" , "Swirl, spin" , "Spin; social activity" .)
'rotate rapidly' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for spin that I've seen before include "Rotate quickly" , "Turn round quickly" , "what some bowlers hope for" , "Rapidly rotate" , "Political bias" .)