The most common and most likely answer to this crossword clue is the 5 letter word PUTTO
P
U
T
T
O
More clues leading to the result PUTTO
Buddy explains!
The straight part
We know that "Cupid" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cupid = putto.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 PUTTO mean?
PUTTO noun- A representation, especially in Renaissance or Baroque art, of a small, naked, often winged (usually male) child; a cherub.