Spin rapidly; try (5)
I believe the answer is:
whirl
I believe this clue is a double definition.
'spin rapidly' is the first definition.
(I've seen this before)
'try' is the second definition.
(whirl is a kind of try)
(Other definitions for whirl that I've seen before include "Revolve" , "Swirl, spin" , "Frantic activity" , "Rotate" , "Circular movement - brief try" .)