He only has two wheels (5)

I believe the answer is:

biker

I'm a little stuck... Click here to teach me more about this clue!

'he only' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'two wheels' is the wordplay.
'two wheels' means two replacements for 'wheel'.
'wheel' becomes 'bike' (synonyms).
'wheel' becomes 'r' (I can't justify this - if you can you should give a lot more credence to this answer).
'bike'+'r'='BIKER'

'has' is the link.

Can you help me to learn more?

(Other definitions for biker that I've seen before include "Motorcycist" , "Rider" , "Hell's Angel?" , "Motorcyclist" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.