Over there, a Yankee gets ahead (3)

I believe the answer is:

yon

'over there' is the definition.
(I've seen this before)

'a yankee gets ahead' is the wordplay.
'a yankee' becomes 'y' (phonetic alphabet: alpha, bravo, charlie etc.).
'gets' says to put letters next to each other.
'ahead' becomes 'on' ('on' can be a synonym of 'ahead'**).
'y'+'on'='YON'

(Another definition for yon that I've seen is " Those Scots".)

I've seen this clue in the Evening Standard.

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