Has two wheels and is used, with love, by a coster (7)
I believe the answer is:
scooter
'has two' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'wheels and is used with love by a coster' is the wordplay.
I cannot really understand how this works, but
'love' could be 'o' (In tennis, 'love' means 'zero') and 'o' is present in the answer.
an anagram of 'coster' is 'scoter' which is located in the left over letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for scooter that I've seen before include "Wheeled board with steering handle" , "Vehicle and child's toy" , "Two-wheeled motor vehicle" , "To score (anag)" , "Child's two-wheeled vehicle" .)