Source of annoyance -- clothes items I have being scratchy (8)
I believe the answer is:
abrasive
'scratchy' is the definition.
(I know that scratchy can be written as abrasive)
'source of annoyance clothes items i have' is the wordplay.
'source of' suggests taking the first letters.
'clothes items' becomes 'bras' (bras are clothing).
'i have' becomes 'I've' (contraction of 'I have').
The first letter of 'annoyance' is 'a'.
'a'+'bras'+'ive'='ABRASIVE'
'being' is the link.
(Other definitions for abrasive that I've seen before include "Like pumice - rough in manner" , "Harsh; eg, emery" , "Rough to the touch" , "Rough, grating" , "One that wears" .)