Hint: I wonder if there are any "green" entries in this grid?
Hint: Holy cow! I found 6 "green" entries, and their first letters spell something recognizable!
Hint: The clue for 58A says it contains a "hint to solving the meta," so maybe I should try looking UNDER what I have so far.
Hint: Hmm, as KayW would say, the entries UNDER the "green" entries all seem to be "sportsing" terms.
Hint: Holy cow! The first letters of the 6 "sportsing" entries also spell something recognizable!
Hint: Oh, now I get it! The "sportsing" entries are "wearing" or "have on" the "green" entries - kinda like a "uniform" per 27A.
Hint: Remember, the prompt says the answer is "someone" (i.e. an individual) - not the entire team!