Some problem with second prophet (5)
I believe the answer is:
moses
'prophet' is the definition.
(I know that Moses is a prophet)
'some problem with second' is the wordplay.
'problem' is an anagram indicator.
'with' is an insertion indicator.
'second' becomes 's' (common abbreviation).
'some' anagrammed gives 'moes'.
'moes' going around 's' is 'MOSES'.
(Other definitions for moses that I've seen before include "the tablet-taker?" , "Hebrew prophet - basket used as baby cradle" , "Receiver of tablets" , "OT Lawgiver" , "Liberator" .)