Shy, I left office job (5)

I believe the answer is:

fling

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'shy' is the definition.
(thesaurus)

I cannot understand how the remainder of the clue works.

(Other definitions for fling that I've seen before include "Throw - short affair" , "Try" , "Throw as in Highland dance?" , "Hurl" , "Throw with force" .)

I've seen this clue in The Globe and Mail.

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