Lacking comforts (7)
I believe the answer is:
austere
'lacking comforts' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for austere that I've seen before include "Lacking adornments" , "Severe, ascetic" , "Without luxury or ornament" , "Severe; lacking luxuries" , "Severe in appearance" .)