Cancel removal of second article from regular publication (5)
I believe the answer is:
annul
'cancel' is the definition.
(I know that annul is a more specific form of the action cancel)
'removal of second article from regular publication' is the wordplay.
I cannot quite understand how this works, but
'article' could be 'an' (indefinite article) and 'an' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for annul that I've seen before include "Declare (a law) invalid" , "Cancel or render void" , "Repeal, rescind" , "Obligation" , "Cancel, revoke" .)