Wicker basket’s inner edge (4)
I believe the answer is:
kerb
'edge' is the definition.
(I know that kerb is a type of edge)
'wicker basket's inner' is the wordplay.
'inner' indicates the answer is hidden within the clue (I've seen 'in' mean this).
'KERB' is hidden in the letters of 'wicker baskets'.
(Other definitions for kerb that I've seen before include "Roadway edge" , "on the borderline?" , "Stone edging to footpath" , "Pavement edge" , "Roadside" .)