Hearty rogue becoming raunchy (6)
I believe the answer is:
earthy
'raunchy' is the definition.
Both the definition and answer are adjectives.
Perhaps you can see a link between them that I don't see?
'hearty rogue' is the wordplay.
'rogue' indicates an anagram.
'hearty' is an anagram of 'EARTHY'.
'becoming' is the link.
Can you help me to learn more?
(Other definitions for earthy that I've seen before include "Of the soil, lusty" , "Suggestive of soil" , "grubby" , "Coarse as humour may be" , "Coarse like the soil" .)