Heather devoured by goat in Essex (10)
I believe the answer is:
billericay
'essex' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'heather devoured by goat' is the wordplay.
'heather' becomes 'erica' (the plant genus Erica includes heather plants).
'devoured by' indicates putting letters inside.
'goat' becomes 'billy' (billy is a kind of goat).
'erica' going into 'billy' is 'BILLERICAY'.
'in' acts as a link.
(Another definition for billericay that I've seen is " Essex town".)