Mural seems to include range (5)
I believe the answer is:
urals
'range' is the definition.
(mountain range)
'mural seems to include' is the wordplay.
'to include' indicates a hidden word.
'URALS' can be found hidden inside 'mural seems'.
(Other definitions for urals that I've seen before include "Mountains of west-central Russia" , "Mountains of Western Russia" , "mountain area" , "Mountain range in Russia and Kazakhstan" , "Russian mountain range" .)