What you're reading at present (4)
I believe the answer is:
'what you're reading' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for clue that I've seen before include "Crossword help" , "Hint to get what this is?" , "contribution to crossword" , "Luce (anag.)" , "Hint; piece of evidence" .)