By arrangement, lend Ben single set of sheets, for example (8)
I believe the answer is:
bedlinen
'set of sheets for example' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'by arrangement lend ben single' is the wordplay.
'by arrangement' is an anagram indicator.
'single' becomes 'I' (I as in one).
'lend'+'ben'+'i'='lendbeni'
'lendbeni' anagrammed gives 'BEDLINEN'.
Can you help me to learn more?
(Other definitions for bedlinen that I've seen before include "changed after guest leaves" , "Sheets and pillowcases" .)