Nice article found in pair of lines? Just kidding (8)
I believe the answer is:
Here is my best explanation:
'just kidding' is the definition.
'nice article found in pair of lines?' is the subsidiary indication.
I cannot really understand how this works, but
'article' could be 'a' (indefinite article) and 'a' is present in the answer.
'lines?' could be 'ry' (abbreviation for railway) and 'ry' is present in the answer.
The remaining letters 'rille' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
(Other definitions for raillery that I've seen before include "Banter, back-chat", "Good-humoured teasing", "Satirical banter", "Light teasing repartee", "Badinage", "Playful satire" and "(Example of) banter".)