Crossword Genius

One’s flat lighting in a bad way? (7)

Ross

I believe the answer is:

pancake

I'm a little stuck... Click here to teach me more about this clue!

'one's flat' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'lighting in a bad way?' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is found in the answer.
'way?' could be 'e' (Compass direction - East) and 'e' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for pancake that I've seen before include "Dish made from batter" , "Flat delicacy popular on Shrove Tuesday" , "Traditional fare on Shrove Tuesday" , "Can peak (anag.)" , "Eg, crepe Suzette" .)

I've seen this clue in The Times.
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