Legal documents, reportedly, for Swiss hotelier (4)
I believe the answer is:
ritz
'swiss hotelier' is the definition.
(I've seen this before)
'legal documents reportedly' is the wordplay.
'legal documents' becomes 'writs' (writ is a kind of legal document).
'reportedly' indicates a 'sounds like' (homophone) clue.
'writs' sounds like 'RITZ'.
'for' is the link.
(Other definitions for ritz that I've seen before include "Luxury hotel" , "Cesar --, Swiss hotelier" , "Swiss founder of hotel chain" , "Place of expensive luxury" , "Swiss hotelier, creator of a chain of elegant hotels, d. 1918" .)