Material found in artificial intelligence (4)
I believe the answer is:
lint
'material' is the definition.
(lint is a kind of material)
'in artificial intelligence' is the wordplay.
'in' indicates the answer is hidden within the clue.
'LINT' is hidden within 'artificial intelligence'.
'found' acts as a link.
(Other definitions for lint that I've seen before include "Fabric for dressing wounds" , "Absorbent material for dressing wounds" , "Wound-dressing fabric" , "Soft material for dressing wounds" , "Soft cloth for dressing wounds" .)