Knowing everything, minions etc. worried (10)
I believe the answer is:
omniscient
'knowing everything' is the definition.
(I've seen this before)
'minions etc worried' is the wordplay.
'worried' indicates anagramming the letters.
'minions'+'etc'='minionsetc'
'minionsetc' is an anagram of 'OMNISCIENT'.
(Other definitions for omniscient that I've seen before include "All-knowing" , "Knowing everything" .)