Witches go where cathedral was destroyed (8)
I believe the answer is:
coventry
'where cathedral was destroyed' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'witches go' is the wordplay.
'witches' becomes 'coven' (I've seen this before).
'go' becomes 'try' (both can mean an attempt).
'coven'+'try'='COVENTRY'
Can you help me to learn more?
(Other definitions for coventry that I've seen before include "Where the ostracised get sent" , "City (for those banished from society?)" , "Has a 5 across designed by Basil Spence" , "Send to this city to ostracise" , "City devastated in World War II" .)