The place for a half-wild broken-down nag (5)
I believe the answer is:
wigan
'the place' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
'half-wild broken-down nag' is the wordplay.
'half' suggests halving the letters.
'broken down' indicates an anagram.
'wild' cut in half is 'wi'.
'nag' anagrammed gives 'gan'.
'wi'+'gan'='WIGAN'
'for a' is the link.
Can you help me to learn more?
(Other definitions for wigan that I've seen before include "Town near Manchester" , "North-western town" , "Manchester-area town, its Pier, Orwell" , "Lancashire town" , "Lancashire FC" .)