Possibly now a way ahead (6)
I believe the answer is:
onward
'ahead' is the definition.
(thesaurus)
'possibly now a way' is the wordplay.
'possibly' indicates an anagram.
'a way' becomes 'ard' (I've seen this in other clues).
'now' with letters rearranged gives 'onw'.
'onw'+'ard'='ONWARD'
(Other definitions for onward that I've seen before include "Advance, Christian soldiers, marching as to war" , "Going on, advancing" , "In a forward direction" , "In front" , "Forward, like Christian soldiers" .)