Freezing cold: left to live outside in transport (7)
I believe the answer is:
bicycle
'transport' is the definition.
(I know that bicycle is a type of automotive vehicle)
'freezing cold left to live outside' is the wordplay.
'freezing' becomes 'icy' (synonyms).
'cold left' becomes 'cl' (this might be a standard abbreviation I've not previously seen).
'to live' becomes 'be' ('be' can be a synonym of 'live').
'outside' means one lot of letters goes inside another.
'icy'+'cl'='icycl'
'icycl' going within 'be' is 'BICYCLE'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for bicycle that I've seen before include "Eg, penny-farthing" , "Form of transport" , "Two-wheeler" , "Lowest values" , "Personal transport" .)