Feel dizzy (3,5)
I believe the answer is:
see stars
'feel dizzy' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for see stars that I've seen before include "affected by flashing lights" , "suffer as a result of a strike?" , "Recognise celebrities" , "You may after whack on the head" , "as one may on beautiful night" .)