The most common and most likely answer to this crossword clue is the 5 letter word BILLY
B
I
L
L
Y
More clues leading to the result BILLY
Buddy explains!

The straight part
We know that "Camp can" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case camp can = billy.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 BILLY mean?
BILLY noun- A billy club.
- A billy goat.
- A good friend.
- A tin used by bushmen to boil tea; a billycan; a billypot.
- A condom (from the E-Rotic song "Willy, Use a Billy... Boy")
- A slubbing or roving machine.