Crossword Genius

Two-wheeled cart seen behind tower? (7)

Ross

I believe the answer is:

tractor

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

'tower?' is the definition.
(I've seen this before)

'two-wheeled cart seen behind' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'cart' is 'trac' which is present in the answer.
The remaining letters 'tor' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for tractor that I've seen before include "Powerful farm vehicle for heavy work" , "Agricultural vehicle" , "I can draw" , "Agricultural machine" , "Tower" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app