A bit risky, initially, entering bar (7)

I believe the answer is:

excerpt

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'a bit' is the definition.
(I have seen 'bit of work' mean 'excerpt' so perhaps 'bit' could also mean 'excerpt')

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for excerpt that I've seen before include "Piece from book etc" , "Short passage" , "a little" , "A selection or passage from" , "Quote" .)

I've seen this clue in The Telegraph.

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