Area where the standard is high (6)
I believe the answer is:
parish
'area' is the definition.
(I have seen 'Ecclesiastical area' mean 'parish' so perhaps 'area' could also mean 'parish')
'the standard is high' is the wordplay.
'the standard' becomes 'par' (standard of play in golf).
'high' becomes 'h' (this could be a standard abbreviation of which I'm unaware).
'par'+'is'+'h'='PARISH'
'where' acts as a link.
Can you help me to learn more?
(Other definitions for parish that I've seen before include "Diocesan subdivision" , "Kind of 2 down - has rip (anag)" , "Local government area" , "District within county" , "Ecclesiastical area" .)