Too confused in Laos? (4)
I believe the answer is:
also
'too' is the definition.
(synonyms)
'confused in laos?' is the wordplay.
'confused in' indicates anagramming the letters.
'laos' is an anagram of 'ALSO'.
(Other definitions for also that I've seen before include "Additionally" , "admitted to Royal Society > too" , "into the bargain" , "What's more" , "Old" .)