The most common and most likely answer to this crossword clue is the 2 plus 4 plus 2 plus 2 plus 4 letter word DO OVER or DO OVER
D
O
O
V
E
R
o
r
D
O
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V
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R
Buddy explains!
The straight part
We know that "Replay" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case replay = do over or do over.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.