Inexplicable thing being in game as every other character sent off (6)
I believe the answer is:
enigma
'inexplicable thing' is the definition.
'enigma' can be an answer for 'thing' (I have seen 'Mysterious thing ' mean 'enigma' so perhaps 'thing' could also mean 'enigma'). I am unsure of the 'inexplicable' bit.
'in game as every other character sent off' is the wordplay.
'in game' anagrams to 'ENIGMA'.
However, I am not clear how the anagram is indicated.
'being' is the link.
Can you help me to learn more?
(Other definitions for enigma that I've seen before include "'Puzzle, riddle (6)'" , "Elgar Variations nickname" , "Solution to mystery" , "cryptic puzzle!" , "Coding device" .)