Furniture used by Francis of Assisi (5)
I believe the answer is:
sofas
'furniture' is the definition.
(I've seen this before)
'used by francis of assisi' is the wordplay.
'used by' indicates a hidden word.
'SOFAS' is hidden in the letters of 'francis of assisi'.
(Other definitions for sofas that I've seen before include "Lounges" , "Upholstered seats for more than one" , "Furniture" , "Long upholstered seats" , "Couches" .)