Refer to everything due for revision (6)
I believe the answer is:
allude
'refer to' is the definition.
(I've seen this in another clue)
'everything due for revision' is the wordplay.
'everything' becomes 'all' (all things).
'for revision' indicates anagramming the letters (I've seen this in other clues).
'due' anagrammed gives 'ude'.
'all'+'ude'='ALLUDE'
(Other definitions for allude that I've seen before include "Refer briefly or indirectly in speaking" , "Make reference to in passing" , "Refer (to) in passing" , "Mention in passing" , "advert" .)