End up seeing number who attended (7)
I believe the answer is:
turnout
'number who attended' is the definition.
(eg the turnout for a concert)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for turnout that I've seen before include "The number of people who came to a function" , "Expel" , "number of people coming to meeting" , "The crowd appearing at an event" , "Number of people attending an event" .)