Chip glass that's found on bed (11)
I believe the answer is:
counterpane
'that's found on bed' is the definition.
(bedspread)
'chip glass' is the wordplay.
'chip' becomes 'counter' (I've seen this before).
'glass' becomes 'pane' (I've seen this before).
'counter'+'pane'='COUNTERPANE'
(Other definitions for counterpane that I've seen before include "Bedspread" , "one goes to bed" , "Bed cover" , "one lying on the bed?" , "Attire (someone)" .)