Transported in a trap perhaps (4)
I believe the answer is:
rapt
'transported' is the definition.
(both can mean enchanted or fascinated)
'trap perhaps' is the wordplay.
'perhaps' indicates an anagram.
'trap' anagrammed gives 'RAPT'.
'in a' acts as a link.
(Other definitions for rapt that I've seen before include "riveted" , "Part of being intent and absorbed" , "Spellbound in part" , "Enchanted in part" , "Fully intent, fascinated" .)