Quilt we’d ironed badly (9)
I believe the answer is:
eiderdown
'quilt' is the definition.
(eiderdown is a kind of quilt)
'we'd ironed badly' is the wordplay.
'badly' indicates an anagram.
'wed'+'ironed'='wedironed'
'wedironed' is an anagram of 'EIDERDOWN'.
(Other definitions for eiderdown that I've seen before include "Find cover" , "What might keep one warm" , "Warm bedcover" , "Feather quilt" , "Soft quilt filled with duck feathers" .)