Not (4)
(Other definitions for fair that I've seen before include "Where the helter-skelter may be" , "Just right" , "here for the ride?" , "Favourable" , "Just; amusement" .)
'not' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nary that I've seen before include "Not in America" , "Not spoken over there" , "Never (a)" .)
(Other definitions for fear that I've seen before include "Feeling of dread" , "Fright" , "Qualms" , "Trepidation" , "Cutting edge" .)
(Other definitions for did that I've seen before include "Swindled" , "Carried out, performed" , "Achieved; cheated" , "Acted" , "Accomplished" .)
(Other definitions for yet that I've seen before include "Still; however" , "Still, so far" , "Still; nevertheless" , "Up till now" , "Up to the present time" .)
(Other definitions for are that I've seen before include "Era (anag.)" , "(They/you/we) exist" , "(We/you/they) exist" , "is for more than one" , "(We/they/you) exist" .)