A cart turning to the right and it’s very slow-moving (7)

I believe the answer is:

tractor

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

'it's very slow-moving' is the definition.
I can't judge whether this definition defines the answer.

'a cart turning to the right' is the wordplay.
'turning' says the letters should be written in reverse.
'the right' becomes 'r' (common abbreviation).
'cart' in reverse letter order is 'trac'.
'trac'+'to'+'r'='TRACTOR'

'and' acts as a link.

Can you help me to learn more?

(Other definitions for tractor that I've seen before include "Bombardier possibly" , "Agricultural machine" , "Farm machine used for pulling" , "Vehicle for pulling others" , "Tower" .)

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.