Refer to everybody with due deviousness (6)
I believe the answer is:
allude
'refer to' is the definition.
(I've seen this before)
'everybody with due deviousness' is the wordplay.
I cannot quite understand how this works, but
'everybody' could be 'all' (all people) and 'all' is found within the answer.
an anagram of 'due' is 'ude' which is within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for allude that I've seen before include "Refe" , "Speak about in passing" , "Make vague reference to" , "Refer (to) in passing" , "give a reference" .)