Vehicle in frozen region caught out (5)
I believe the answer is:
artic
'vehicle' is the definition.
(I've seen this before)
'frozen region caught out' is the wordplay.
'frozen region' becomes 'arctic'.
'caught' becomes 'c' (cricket abbreviation).
'out' indicates named letters should be taken away.
'arctic' with 'c' removed is 'ARTIC'.
'in' acts as a link.
(Other definitions for artic that I've seen before include "Manoeuvrable lorry" , "Large lorry" , "rig" , "Large truck (informal)" , "Large vehicle" .)