Certain letters with kind features (8)
I believe the answer is:
typeface
'certain letters' is the definition.
(printed letters)
'with kind features' is the wordplay.
'with' is a charade indicator (letters next to each other).
'kind' becomes 'type' (type is a kind of kind).
'features' becomes 'face' (facial features).
'type' next to 'face' is 'TYPEFACE'.
(Other definitions for typeface that I've seen before include "Bodoni" , "Set of characters" , "Design of font" , "Style of font" , "Style of print" .)