The most common and most likely answer to this crossword clue is the 7 plus 3 letter word CLAPPED OUT
I've seen this crossword clue in Independent
C
L
A
P
P
E
D
O
U
T
More clues leading to the result CLAPPED OUT
- Tired as Bradman was on coming to the wicket for the last time?
- Given applause when exiting, exhausted
- Exhausted, but well received as you leave
- Exhausted by too much applause?
- Done in like the house after umpteenth encore?
- Tired as audience after a Kim Jong-un speech?
- Drank nothing, dashed outside, being exhausted
- Key on laptop due to be replaced is of no more use
- Exhausted by too many curtain calls?
- Meeting of the hands due? Opt for a change, exhausted
Buddy explains!

The straight part
We know that "Exhausted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case exhausted = clapped out.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.