Crossword Genius

Left the mare cantering round the field (5)

Ross

I believe the answer is:

realm

'the field' is the definition.
('realm' can be a synonym of 'field')

'left the mare cantering round' is the wordplay.
'left' becomes 'L' (common abbreviation).
'cantering round' is an anagram indicator.
'l'+'mare'='lmare'
'lmare' anagrammed gives 'REALM'.

(Other definitions for realm that I've seen before include "Kingdom or sphere" , "region" , "Province" , "Kingdom, domain" , "Royal domain" .)

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