Husband wears away, crossing hot moorlands (6)
I believe the answer is:
heaths
'moorlands' is the definition.
(I've seen this before)
'husband wears away crossing hot' is the wordplay.
'husband wears away' becomes 'heats' (I can't explain this - if you can you should give a lot more credence to this answer).
'crossing' indicates putting letters inside.
'hot' becomes 'h' (abbreviation eg on taps).
'heats' going around 'h' is 'HEATHS'.
Can you help me to learn more?
(Other definitions for heaths that I've seen before include "Moorlands" , "Moors" , "Sandy areas; shrubs" , "Tracts of wasteland with scrubby vegetation" .)