The most common and most likely answer to this crossword clue is the 6 letter word BALBOA
B
A
L
B
O
A
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The straight part
We know that "Rocky, perhaps/ready for Panamanian" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rocky, perhaps/ready for panamanian = balboa.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 BALBOA mean?
BALBOA noun- The currency of Panama, divided into 100 centésimos