Some man describing mountain range (5)
I believe the answer is:
andes
'mountain range' is the definition.
(Andes is an example)
'some man describing' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'ANDES' is hidden in the letters of 'man describing'.
(Other definitions for andes that I've seen before include "World's longest mountain range" , "South American mountain system" , "Aconcagua the highest in this range" , "Great S American mountains" , "Great mountains of western S America" .)