Setter ready to store ear-bone in haberdashery item (10)
I believe the answer is:
pincushion
'haberdashery item' is the definition.
(something a haberdashery might sell)
'setter ready to store ear-bone' is the wordplay.
I cannot quite see how this works, but
'setter' could be 'i' (the person that set the crossword) and 'i' is present in the answer.
'ready' could be 'on' (if a device is on it is ready for use) and 'on' is found in the answer.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Other definitions for pincushion that I've seen before include "Sewer's aid" , "small pad" .)