Roll-call response (4)
I believe the answer is:
here
'roll-call response' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for here that I've seen before include "In attendance" , "Present - at this point" , "In this place - present" , ""___ be dragons" (old map inscription?)" , "At this stage" .)