Came out (7)
I believe the answer is:
emerged
'came out' is the definition.
('emerge' can be a synonym of 'come out')
This is the entire clue.
(Other definitions for emerged that I've seen before include "Deem Reg to have come out" , "Came out, became known" , "Came into view or became apparent" , "Slowly came out" , "Transpired" .)