Surgical procedure wasted copious lint (11)
I believe the answer is:
liposuction
'surgical procedure' is the definition.
(I've seen this before)
'wasted copious lint' is the wordplay.
'wasted' indicates anagramming the letters.
'copious'+'lint'='copiouslint'
'copiouslint' is an anagram of 'LIPOSUCTION'.
(Other definitions for liposuction that I've seen before include "Technique for removing excess fat" , "Surgical procedure" .)