Part of the eye - Crossword Clue, Answer and Explanation

'part of the eye' is the definition.
(I know this)

This is the entire clue.

(Other definitions for iris that I've seen before include "Circular coloured membrane in the eye" , "Flower and eye membrane" , "Woman" , "Eye diaphragm" , "bloomer?" .)

I've seen this clue in The New York Times, the Penny Press, the Newsday, the USA Today, The Telegraph, The Times, The Mirror, the Sydney Morning Herald, The Guardian and The Sun.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for lens that I've seen before include "Optical device using light to form images" , "Piece of glass, usually curved" , "Camera component" , "Refracting device" , "feature of camera" .)

I've seen this clue in The New York Times, the Penny Press, the Newsday, the USA Today, The Telegraph, The Times, The Mirror, the Sydney Morning Herald, The Guardian and The Sun.

'part of the eye' is the definition.
('cone' is part of 'eye')

This is the entire clue.

(Other definitions for cone that I've seen before include "Road works marker" , "Solid figure" , "Road furniture!" , "it may hold ice-cream" , "Portable marker for lines on road" .)

I've seen this clue in The New York Times, the Penny Press, the Newsday, the USA Today, The Telegraph, The Times, The Mirror, the Sydney Morning Herald, The Guardian and The Sun.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for uvea that I've seen before include "bit of a looker" , "The pigmented layer of the eye" , "part of eye be seen" , "Part of the eyeball which houses the iris" , "bit of mince pie!" .)

I've seen this clue in The New York Times, the Penny Press, the Newsday, the USA Today, The Telegraph, The Times, The Mirror, the Sydney Morning Herald, The Guardian and The Sun.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for retina that I've seen before include "Light-sensitive membrane in the eye" , "part of the water pump" , "Eye's membrane" , "Light-sensitive eye lining" , "Membrane that can become detached" .)

I've seen this clue in the Penny Press, the Newsday, the USA Today, The Telegraph, The Times, The Independent, the Sydney Morning Herald and The Guardian.

'part of the eye' is the definition.
(I know this)

This is the entire clue.

(Other definitions for pupil that I've seen before include "A student at school or eye part" , "Scholar" , "One being taught" , "Learner at educational institution" , "one may see through!" .)

I've seen this clue in the Universal, The Independent, The Guardian and The Telegraph.

Part of the eye (6)