Tod alone (5)

I believe the answer is:

sloan

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

'tod' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I don't see?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for sloan that I've seen before include "snub in Glasgow" , "Scots snub" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app