The most common and most likely answer to this crossword clue is the 10 letter word CHARIOTEER
I've seen this crossword clue in The Guardian
C
H
A
R
I
O
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E
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R
More clues leading to the result CHARIOTEER
- A dazzling display amid applause for racing driver
- Carriage driver’s optimism about a public disturbance
- Clubs with a three iron shortly exchanged for old driver
- A scream muffled by shout for old competitor
- Circus performer behaving hilariously with applause around
- Star group unrestrainedly enveloped in applause
- Old racing driver‘s less rash, nursing fractured toe
- An uproar during applause for old Roman sportsman
- The old racer racing around Italy?
- Shout stifling a scream for Ben-Hur?
Buddy explains!

The straight part
We know that "The old racer racing around Italy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case the old racer racing around italy = charioteer.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 CHARIOTEER mean?
CHARIOTEER noun- A person who drives a chariot.
- To drive a chariot.
- To drive someone in a chariot.