He goes round a short way in a hurry (5)
I believe the answer is:
haste
'a hurry' is the definition.
(haste is hurrying or rushing)
'he goes round a short way in' is the wordplay.
'goes round' is an insertion indicator.
'short way' becomes 'st' (abbreviation for street; 'short' suggests an abbreviation).
'in' is an insertion indicator.
'he' placed around 'a' is 'hae'.
'hae' going around 'st' is 'HASTE'.
(Other definitions for haste that I've seen before include "Rash speed" , "Possible cause of careless mistakes?" , "Heats (anag.)" , "Expedition" , "dispatch" .)