Pull in outside of Lille, stopping vehicle (5)
I believe the answer is:
clear
'pull in' is the definition.
('clear' can be a synonym of 'pull in')
'outside of lille stopping vehicle' is the wordplay.
'outside of' suggests removing the centre.
'stopping' indicates putting letters inside (stopping can mean blocking a gap).
'vehicle' becomes 'car' (car is a kind of vehicle**).
'lille' with its centre taken out is 'le'.
'le' inserted inside 'car' is 'CLEAR'.
(Other definitions for clear that I've seen before include "Lucid, obvious" , "bound over" , "Distinct - obvious" , "Transparent, easy to see through" , "Discharge (debt), unclouded" .)