Crossword Genius

Monarch with only one foot? (5)

Ross

I believe the answer is:

ruler

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

This clue might be a double definition.

'monarch' is the first definition.
(I've seen this before)

'only one foot?' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'with' is the link.

Can you help me to learn more?

(Other definitions for ruler that I've seen before include "liner?" , "Measuring rod; governor" , "King, president etc." , "Queen maybe" , "One measures" .)

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