Confused - put on light (6)
I believe the answer is:
addled
'confused?' is the definition.
(addling is a kind of confusing)
'put on light' is the wordplay.
'put on' becomes 'add' (I've seen this in another clue).
'light' becomes 'led' (abbreviation for light emitting diode).
'add'+'led'='ADDLED'
(Other definitions for addled that I've seen before include "Befuddled" , "spoiled" , "Mentally confused, muddled" , "Perplexed -- rotten" , "Confused like infertile egg" .)