The instrument for a little light writing? (6)
I believe the answer is:
pencil
'the instrument' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'little light writing?' is the wordplay.
I cannot really understand how this works, but
'little' could be 'l' (abbreviation for little) and 'l' is found within the answer.
'writing?' could be 'pen' and 'pen' is located in the answer.
This explanation may well be incorrect...
'for a' is the link.
Can you help me to learn more?
(Other definitions for pencil that I've seen before include "writing equipment" , "Drawer with graphite in" , "Graphite writer" , "Wooden writer" , "One doing boring clerical work?" .)