Ostentatious display of spectator refreshments at sporting event? (7)

I believe the answer is:

fanfare

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'ostentatious display' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for fanfare that I've seen before include "Enthusiastic display" , "Ceremonious sounding of trumpets" , "Ostentatious display" , "A ceremonial blast of trumpets" , "Short ceremonial tune for trumpets" .)

I've seen this clue in The Telegraph.

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