Another malt, partly responsible for getting you warm (7)
I believe the answer is:
thermal
'responsible for getting you warm' is the definition.
(thermal can mean relating to heat)
'another malt partly' is the wordplay.
'partly' says the answer is hidden in the clue (part of the clue is used).
'THERMAL' is hidden within 'another malt'.
(Other definitions for thermal that I've seen before include "Concerned with high temperature" , "Rising current of warm air" , "Designed to protect from cold" , "Her malt became heat-related" , "type of baths" .)