Mountains in pictures, miles away (5)
I believe the answer is:
urals
'mountains' is the definition.
(I've seen this before)
'pictures miles away' is the wordplay.
'pictures' becomes 'murals' (mural is a kind of picture).
'miles' becomes 'm' (common abbreviation).
'away' indicates named letters should be taken away.
'murals' with 'm' taken away is 'URALS'.
'in' acts as a link.
(Other definitions for urals that I've seen before include "mountain area" , "Mountains on the boundary between Europe and Asia" , "Russian mountain range" , "Mountain range in Russia and Kazakhstan" , "Mountains of west-central Russia" .)