One's own little place in Great Missenden (3)

I believe the answer is:

den

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'one's' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.

'own little place in great missenden' is the wordplay.
'DEN' is hidden in amongst the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for den that I've seen before include "Hidden lair of an animal" , "Animals' shelter" , "Animal's lair or man's study" , "Hideaway" , "Cave" .)

I've seen this clue in the Evening Standard.

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