A drunk's caught interrupting meetings here (5)

I believe the answer is:
ascot
'meetings here' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'a drunk's caught interrupting' is the wordplay.
'drunk' becomes 'sot' (both can mean someone who drinks too much).
'caught' becomes 'c' (cricket abbreviation).
'interrupting' is an insertion indicator.
'sot' placed around 'c' is 'scot'.
'a'+'scot'='ASCOT'
Can you help me to learn more?
(Other definitions for ascot that I've seen before include "Racecourse, home to the Gold Cup since 1807" , "Racecourse and cravat" , "somewhere in Berks" , "Society race meeting" , "Horse-racing venue" .)
