I'm upset tolerant outlook lacking King's English (7)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

WO [k] EISM (awareness of social injustice = tolerant outlook, though it’s generally used as a derogatory term) without the K (abbreviation for king, in chess or playing cards), then E (abbreviation for English). Archaic phrase expressing unhappiness.