Ride in this buggy cut off (10)
I believe the answer is:
disinherit
'cut off' is the definition.
(I've seen this before)
'ride in this buggy' is the wordplay.
'buggy' indicates an anagram.
'ride'+'in'+'this'='rideinthis'
'rideinthis' with letters rearranged gives 'DISINHERIT'.
(Other definitions for disinherit that I've seen before include "Cut off as with a shilling" , "Write out of a will" , "Remove as heir" , "Lanarkshire town" .)