Cryptic crossword clue
Off-the-cuff comment, curiously ribald, not run 2,3

The most common and most likely answer to this crossword clue is the 2 plus 3 letter word AD LIB

A
D
L
I
B


Buddy explains!

The straight part
We know that "Off-the-cuff comment" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case off-the-cuff comment = ad lib.
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 AD LIB mean?

AD LIB verb
  1. To improvise all or part of a speech or other performance, especially in comedy.

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