Examine a name written in coloured pencil (6)
I believe the answer is:
crayon
'coloured pencil' is the definition.
(I've seen this before)
'examine a name written in' is the wordplay.
'examine' becomes 'con'.
'a name' becomes 'ray' ().
'written in' means one lot of letters goes inside another.
'con' going around 'ray' is 'CRAYON'.
(Other definitions for crayon that I've seen before include "Producer of sketch" , "Coloured wax pencil" , "Cyrano (anag)" , "Drawing implement" , "Stick to colour" .)