Show contempt of an out-of-the-way visionary (5)
I believe the answer is:
sneer
'show contempt' is the definition.
(I've seen this before)
'an out-of-the-way visionary' is the wordplay.
'an out of' is an insertion indicator (some letters on the outside of others).
'the way' becomes 'n' (Compass direction - North).
'visionary' becomes 'seer' (synonyms).
'n' going inside 'seer' is 'SNEER'.
'of' is the link.
(Other definitions for sneer that I've seen before include "Derisive remark" , "Taunt" , "Contemptuous look" , "Show cynical contempt" , "Show contempt by contorting the face" .)