Fastidious and fussy, especially when eating.
Elegant; delicately small and pretty.
A delicacy (in taste).
A fancy cookie, pastry, or square, frequently homemade, served at a social event.
Untidy in appearance.
Scurfy.
An artificial intelligence researcher who believes that intelligence is too complicated (or computationally intractable) to be solved with the sorts of homogeneous system favoured by the "neats".