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 a link 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" .)