Structure made with cunning technique (7)
I believe the answer is:
archway
'structure' is the definition.
(I've seen this before)
'with cunning technique' is the wordplay.
'with' means one lot of letters go next to another.
'cunning' becomes 'arch' (arch can mean cunning or tricksy).
'technique' becomes 'way' (I've seen this in another clue).
'arch' put next to 'way' is 'ARCHWAY'.
'made' acts as a link.
(Other definitions for archway that I've seen before include "Entrance structure" , "Vaulted passage" , "entrance, perhaps" , "Curved entrance" , "part of London" .)