Reader's plea for original expression (4)
I believe the answer is:
stet
This clue could be a double definition.
'reader's plea' is the first definition.
The definition suggests a singular noun which matches the answer.
'original expression' is the second definition.
The definition suggests a singular noun which matches the answer.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for stet that I've seen before include "Ignore instruction to change" , "marginal instruction" , "Printing term" , "Let it stand (L)" , "'In printing, cancel a correction and leave it as it was (4)'" .)