The most common and most likely answer to this crossword clue is the 10 letter word MOON-FACED
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The straight part
We know that "having a/round visage" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having a/round visage = moon-faced.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 MOON-FACED mean?
MOON-FACED adjective- Having a round or moon-shaped face.