Festival with discounted bar near centre is more relaxed (6)

I believe the answer is:

easier

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'more relaxed' is the definition.
('easy' is associated in meaning with 'relaxed')

I don't understand the rest of the clue.

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(Other definitions for easier that I've seen before include "Less taxing" , "Simpler" , "More facile" , "Requiring less effort" , "More effortless" .)

I've seen this clue in The Telegraph.

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