The most common and most likely answer to this crossword clue is the 4 letter word HULK
I've seen this crossword clue in The Guardian
H
U
L
K
More clues leading to the result HULK
Buddy explains!

The straight part
We know that "Famous 16 figure’" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case famous 16 figure’ = hulk.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 HULK mean?
HULK noun- A non-functional but floating ship, usually stripped of rigging and equipment, and often put to other uses such as storage or accommodation.
- Any large ship that is difficult to maneuver.
- A large structure with a dominating presence.
- A big (and possibly clumsy) person.
- An excessively muscled person.
- To reduce (a ship) to a (nonfunctional) hulk.
- To be a hulk, a large (hulking) and often imposing presence.
- To move (one's large, hulking body).
- To remove the entrails of; to disembowel.