Problem in photography studied and indeed spoken of (3,3)
I believe the answer is:
red eye
'problem in photography' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'studied and indeed spoken of' is the wordplay.
'studied' becomes 'red' (I can't justify this - if you can you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'indeed' becomes 'aye' (I've seen this before).
'spoken of' shows a homophone (sound like).
'aye' sounds like 'eye'.
'red'+'eye'='RED-EYE'
Can you help me to learn more?
(Other definitions for red eye that I've seen before include "a flasher may get, on reflection?" , "avoided by careful photographers" , "flying through the night" , "Effect of shooting" , "Overnight flight from America" .)