One usually dressed in black became hot (4)
I believe the answer is:
goth
'one usually dressed in black' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'became hot' is the wordplay.
'became' becomes 'got' ('get' can be a synonym of 'become').
'hot' becomes 'h' (abbreviation eg on taps).
'got'+'h'='GOTH'
Can you help me to learn more?
(Other definitions for goth that I've seen before include "punk style" , "Rock music with gloomy lyrics" , "Rock music fan favouring black clothing" , "One of an ancient Germanic nation" , "Teutonic barbarian" .)