Office furniture is welcome from French king (9,4)
I believe the answer is:
reception desk
'office furniture' is the definition.
'reception desk' can be an answer for 'furniture' (reception desk is a kind of furniture). I'm not sure about the 'office' bit.
'welcome from french king' is the wordplay.
'welcome' becomes 'reception' (I've seen this before).
'from french' becomes 'de' ('from' in French).
'king' becomes 'sk' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'reception'+'de'+'sk'='RECEPTION DESK'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for reception desk that I've seen before include "Visitor reporting point" , "Reporting point for visitors to offices" .)