Dazed, punch-drunk (6)
I believe the answer is:
groggy
I believe this clue is a double definition.
'dazed' is the first definition.
(synonyms)
'punch-drunk' is the second definition.
(I've seen this in another clue)
(Other definitions for groggy that I've seen before include "Confused and slow to react" , "In a daze" , "Stunned and unsteady" , "Stunned, slow to react" , "Weak and unsteady - after rum and water?" .)