Vehicle has creepy-crawlies — not good! (3)
I believe the answer is:
bus
'vehicle' is the definition.
(bus is a kind of vehicle)
'creepy-crawlies not good' is the wordplay.
'creepy-crawlies' becomes 'bugs' (creepy-crawlies can bugs, worms etc).
'not' indicates named letters should be taken away.
'good' becomes 'g' (abbreviation).
'bugs' with 'g' taken out is 'BUS'.
'has' acts as a link.
(Other definitions for bus that I've seen before include "Something caught" , "Public service vehicle" , "eg Double-decker" , "Mode of public transport" , "Large passenger vehicle - small business!" .)