Some fear loaded aristocrat (4)
I believe the answer is:
earl
'aristocrat' is the definition.
(I've seen this before)
'some fear loaded' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'EARL' can be found hidden inside 'fear loaded'.
(Other definitions for earl that I've seen before include "Jimmy Carter's middle name" , "Count" , "Rank below marquess" , "British noble" , "Sandwich perhaps" .)