Photographer’s problem regarding colour requiring electronic input (3-3)
I believe the answer is:
red-eye
'photographer's problem' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'regarding colour requiring electronic input' is the wordplay.
'regarding' becomes 're' ('re' means regarding or about).
'colour' becomes 'dye' (dyeing is a kind of colouring).
'requiring' is a charade indicator (letters next to each other).
'electronic' becomes 'e' (as in e-mail or e-books).
'input' indicates putting letters inside.
're'+'dye'='redye'
'redye' placed around 'e' is 'RED-EYE'.
Can you help me to learn more?
(Other definitions for red-eye that I've seen before include "Poor quality, coarse powerful whiskey" , "Poor whiskey - overnight flight" .)