Troublesome place with an effigy? (6)

I believe the answer is:

plaguy

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'troublesome' is the definition.
Both the answer and definition are adjectives. Maybe you can see an association between them that I don't see?

'place with an effigy?' is the wordplay.
'place' becomes 'pl' (abbreviation used in postal addresses).
'with' means one lot of letters go next to another.
'an' becomes 'a'.
'effigy?' becomes 'Guy' (Guy is an example).
'pl'+'a'+'guy'='PLAGUY'

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I've seen this clue in The Guardian.

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