Bar in Munich is taken on by family member (6)

I believe the answer is:

bistro

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'bar' is the definition.
(I have seen 'French bar' mean 'bistro' so perhaps 'bar' could also mean 'bistro')

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for bistro that I've seen before include "Small informal French restaurant" , "'Small, inexpensive restaurant (6)'" , "Small inexpensive eatery" , "family concern perhaps" , "Coming out of restaurant" .)

I've seen this clue in The Times.

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