Race had become disorderly farce (7)
I believe the answer is:
charade
'disorderly farce' is the definition.
'charade' can be an answer for 'farce' (both can mean absurd or false situation). I am not sure about the 'disorderly' bit.
'race had become' is the wordplay.
'become' indicates an anagram.
'race'+'had'='racehad'
'racehad' is an anagram of 'CHARADE'.
Can you help me to learn more?
(Other definitions for charade that I've seen before include "Farce - mime" , "An absurd pretence, could be a game" , "Word-guessing riddle" , "Acted riddle - pretence" , "Had care in the acted riddle" .)