The most common and most likely answer to this crossword clue is the 9 letter word CYCLORAMA
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Buddy explains!

The straight part
We know that "fair attraction" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fair attraction = cyclorama.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does CYCLORAMA mean?
CYCLORAMA noun- A display consisting of a continuous series of pictures placed on the walls of a circular room so as to appear in natural perspective by a person standing in the middle; a circular or semi-circular display.
- A large curtain or wall, often concave, hung upstage, in a theatre.