Crossword Genius

With enthusiasm, display a half-time burger and pint? (7)

Ross

I believe the answer is:

fanfare

I'm a little stuck... Click here to teach me more about this clue!

'with enthusiasm display' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.

'a half-time burger and pint?' is the wordplay.
I cannot quite see how this works, but
'a' could be 'an' and 'an' is found within the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for fanfare that I've seen before include "Short ceremonial tune for trumpets" , "Ostentatious display" , "Flourish played at military Ceremonial" , "Short piece of music played on brass instruments (for the Common Man?)" , "Flourish of trumpets" .)

I've seen this clue in The Telegraph.
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