Curt type round hospital (5)
I believe the answer is:
short
'curt' is the definition.
('short' can be a synonym of 'curt')
'type round hospital' is the wordplay.
'type' becomes 'sort' (I've seen this before).
'round' is an insertion indicator.
'hospital' becomes 'h'.
'sort' enclosing 'h' is 'SHORT'.
(Other definitions for short that I've seen before include "Neat" , "Wanting" , "Of small duration" , "Of small length" , "Terse; in insufficient supply" .)