Call in badly torn decoration (8)
I believe the answer is:
ornament
'decoration' is the definition.
(I know that decoration can be written as ornament)
'call in badly torn' is the wordplay.
'call' becomes 'name' (as in calling or naming someone something).
'in' is an insertion indicator.
'badly' indicates anagramming the letters.
'torn' with letters rearranged gives 'ornt'.
'name' going into 'ornt' is 'ORNAMENT'.
(Other definitions for ornament that I've seen before include "small decorative object" , "Decorative item" , "deck" , "Decoration, adornment" , "accessory" .)