The most common and most likely answer to this crossword clue is the 6 letter word CORNEA
I've seen this crossword clue in Independent
C
O
R
N
E
A
More clues leading to the result CORNEA
- Part of eye in centre of head behind ears, perhaps
- Cornet finally replaced by a part for an organ
- Eye covering new in central area
- Cereal crop alongside river – it’s regularly grafted
- Eye cell about right, a part of the visual organ
- Name inscribed in heart — a bit of a looker
- Time to leave musical instrument with Academy that’s near the pupil
- Wow! Close, finishing early for a bit of a looker
- Sailors each propping up officer’s cover for Iris
- My new beau, naked, is a bit of a looker
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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 CORNEA mean?
CORNEA noun- The transparent layer making up the outermost front part of the eye, covering the iris, pupil, and anterior chamber.