Emerge in season (6)
I believe the answer is:
spring
This clue is a double definition.
'emerge' is the first definition.
(thesaurus)
'season' is the second definition.
(spring is a kind of season)
'in' is the link.
(Other definitions for spring that I've seen before include "Leap; season" , "Start season" , "Bound < to get out of prison" , "Bound into the season" , "Bound; source" .)