Frenchman hosts meeting in home from home (4-1-5)
I believe the answer is:
pied-a-terre
'home from home' is the definition.
'pied a terre' can be an answer for 'home' (I have seen 'second home' mean 'pied a terre' so perhaps 'home' could also mean 'pied a terre'). I'm unsure of the 'home from' bit.
'frenchman hosts meeting' is the wordplay.
'frenchman' becomes 'pierre' (common French name).
'hosts' means one lot of letters goes inside another (inserted letters are welcomed or hosted).
'meeting' becomes 'date' (date is a kind of meeting).
'pierre' going around 'date' is 'PIED-A-TERRE'.
'in' is the link.
Can you help me to learn more?
(Other definitions for pied-a-terre that I've seen before include "Small secondary flat or house" , "Lodging kept for occasional use (French)" , "bijou accommodation" , "Small home kept for occasional use" , "Dwelling for occasional use" .)