One going into a number as a loud performer (6)
I believe the answer is:
factor
'one going into a number' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'a loud performer' is the wordplay.
'a loud' becomes 'f' (A musical term).
'performer' becomes 'actor' (actor is a kind of performer).
'f'+'actor'='FACTOR'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for factor that I've seen before include "Of 15, 3 or 5" , "Scottish estate manager" , "Thirteen is one of fifty two" , "Aspect" , "Contributing element" .)