Snow on to higher ground penetrating outskirts of Dundee (4)
I believe the answer is:
dupe
'snow' is the definition.
(thesaurus)
'to higher ground penetrating outskirts of dundee' is the wordplay.
I cannot really see how this works, but
'higher' could be 'up' and 'up' is found in the answer.
'outskirts of dundee' could be 'de' (first and last letters of 'Dundee') and 'de' is located in the leftover letters.
No letters remain.
This explanation may well be incorrect...
'on' acts as a link.
Can you help me to learn more?
(Other definitions for dupe that I've seen before include "Swindle" , "One deceived, tricked" , "Cat's paw" , "One who is cheated" , "Con" .)