This old teacher's home outskirts of Glenties? Potentially (5-12)

I believe the answer is:

hedge-schoolmaster

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'this old teacher's home outskirts of glenties? potentially' is the definition.
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'old teacher's home outskirts of glenties? potentially' is the wordplay.
'outskirts of' says to hollow out the word (remove centre letters) (only letters on the outskirts).
'potentially' indicates anagramming the letters (letters have the potential to spell a new word).
'glenties' with its centre taken out is 'gs'.
'old'+'teachers'+'home'+'gs'='oldteachershomegs'
'oldteachershomegs' with letters rearranged gives 'HEDGE-SCHOOLMASTER'.

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I've seen this clue in The Times.

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