Meta dissection of side (4)
I believe the answer is:
team
'side' is the definition.
(a side is a sporting team)
'meta dissection' is the wordplay.
'meta' anagrams to 'TEAM'.
But, I am unsure how the anagram is indicated.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for team that I've seen before include "One side in a game" , "Two or more working together" , "See 22" , "A set of players forming one side" , "Mate for a group of players" .)