Fascinated emerging from contraption (4)
I believe the answer is:
rapt
'fascinated' is the definition.
(I've seen this before)
'from contraption' is the wordplay.
'from' says the answer is hidden in the clue.
'RAPT' is hidden within 'contraption'.
'emerging' acts as a link.
(Other definitions for rapt that I've seen before include "Part of being intent and absorbed" , "Fully engaged" , "Fully intent, fascinated" , "Enthralled, captivated" , "Absorbed and enchanted" .)