Against getting fellow a stylus (6)
I believe the answer is:
crayon
'a stylus' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'against getting fellow' is the wordplay.
'against' becomes 'con' (as in pros and cons).
'getting' is an insertion indicator.
'fellow' becomes 'ray' (man's name).
'con' enclosing 'ray' is 'CRAYON'.
Can you help me to learn more?
(Other definitions for crayon that I've seen before include "Waxy pencil" , "Colouring pencil" , "Source of colour" , "drawer" , "alternative to charcoal" .)