Cut corners in bypass round motorway (5)
I believe the answer is:
skimp
'cut corners' is the definition.
(thesaurus)
'bypass round motorway' is the wordplay.
'bypass' becomes 'skip' (I've seen this before).
'round' indicates putting letters inside.
'motorway' becomes 'm'.
'skip' placed around 'm' is 'SKIMP'.
'in' acts as a link.
(Other definitions for skimp that I've seen before include "Stint in order to economise" , "Withhold" , "Stint, scrimp" , "hasty" , "save" .)