One with strong liking missed cuddle occasionally from desperate dry-cleaner (7)

I believe the answer is:

yearner

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'one' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for yearner that I've seen before include "One longing" , "discontented with his lot?" .)

I've seen this clue in The Hindu.

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