Biblical figure in Pisa - a Canaanite (5)
I believe the answer is:
isaac
'biblical figure' is the definition.
(I've seen this before)
'in pisa a canaanite' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ISAAC' is hidden within 'pisa a canaanite'.
(Other definitions for isaac that I've seen before include "___ Newton, English physicist, d. 1727" , "biblical figure" , "Actor Oscar" , "Hebrew patriarch" , "Abraham, --, Jacob" .)