Boxing class where tea is brewed during contest
I believe the answer is:
featherweight
'boxing class' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'where tea is brewed during contest' is the wordplay.
'is brewed' indicates an anagram (I've seen 'being brewed' mean this).
'during' indicates putting letters inside.
'contest' becomes 'fight' (I've seen this before).
'where'+'tea'='wheretea'
'wheretea' is an anagram of 'eatherwe'.
'eatherwe' inserted inside 'fight' is 'FEATHERWEIGHT'.
Can you help me to learn more?
(Other definitions for featherweight that I've seen before include "Light boxer" , "Boxer; person not worth serious consideration" , "one might be counted out?" , "Sportsman" , "Boxer weighing up to 57 kg" .)