Unusually, we're on hand at this time (4,3,3)
I believe the answer is:
here and now
'at this time' is the definition.
(I've seen this before)
'unusually we're on hand' is the wordplay.
'unusually' indicates an anagram.
'were'+'on'+'hand'='wereonhand'
'wereonhand' with letters rearranged gives 'HERE AND NOW'.
(Other definitions for here and now that I've seen before include "on the spot" , "present" , "At this time" .)