Unsafe transport in the outskirts of Surrey (5)
I believe the answer is:
scary
'unsafe' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?
'transport in the outskirts of surrey' is the wordplay.
'transport' becomes 'car' (car is a kind of transport).
'in the' indicates putting letters inside.
'outskirts of' means to remove the middle letters.
'surrey' with its middle removed is 'sy'.
'car' going into 'sy' is 'SCARY'.
Can you help me to learn more?
(Other definitions for scary that I've seen before include "Alarming, maybe paranormal" , "[SPICE]" , "Fearsome" , "Frightening or spooky" , "spook" .)