Slip into Latin (7)
I believe the answer is:
erratum
This clue might be a double definition.
'slip' is the first definition.
(I've seen this in another clue)
'latin' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'into' acts as a link.
Can you help me to learn more?
(Other definitions for erratum that I've seen before include "Mistake (in publishing)" , "Printing error" , "Slip" , "Published correction" , "gaffe" .)