Biblical figure is a flipping short cad (5)
I believe the answer is:
isaac
'biblical figure' is the definition.
(I've seen this before)
'is a flipping short cad' is the wordplay.
'flipping' is a reversal indicator.
'short' means to remove the last letter.
'cad' with its final letter taken away is 'ca'.
'ca' in reverse letter order is 'ac'.
'is'+'a'+'ac'='ISAAC'
(Other definitions for isaac that I've seen before include "designated victim" , "- Newton, Eng. physicist and mathematician" , "one in Genesis" , "Abraham, --, Jacob" , "Biblical father of twins" .)