Love to get about large town at speed (8)
I believe the answer is:
velocity
'speed' is the definition.
(I know that speed can be written as velocity)
'love to get about large town' is the wordplay.
'to get about' is an anagram indicator (I've seen 'getting about' mean this).
'large town' becomes 'city' (a city is a large settlement).
'love' is an anagram of 'velo'.
'velo'+'city'='VELOCITY'
'at' is the link.
(Other definitions for velocity that I've seen before include "Rate of motion, distance per unit of time" , "Rate of motion in a specified direction" , "Agreeable -- Riviera resort" , "Love city on speed" , "Speed of travel" .)