Wander in a chain of mountains (5)
I believe the answer is:
range
This clue is a triple definition!
'wander' is the first definition.
(I know that wander can be written as range)
'in' is a link.
'a chain' is the second definition.
('range' can be a synonym of 'chain')
'of' acts as a link.
'mountains' is the third definition.
(range of mountains)
(Other definitions for range that I've seen before include "Where to cook" , "Stove; variety" , "Cattle country - mountains - scope - stove" , "on which 'Dr Brewster Higley' felt at home?" , "Series of connected mountains" .)