Tense host (7)
I believe the answer is:
present
I believe this is a double definition.
'tense' is the first definition.
(I know that present is a type of tense)
'host' is the second definition.
(I've seen this before)
(Other definitions for present that I've seen before include "able to be registered" , "available" , "Introduce < and compere < tense" , "Serpent (anag.)" , "Give - what's received at Christmas?" .)