Go in with can, embracing a host (9)
I believe the answer is:
entertain
'host' is the definition.
(entertain can mean to host guests)
'go in with can embracing a' is the wordplay.
'go in with' becomes 'enter' (I can't justify this - if you can you should believe this answer much more).
'can' becomes 'tin' (both are metal containers).
'embracing' means one lot of letters goes inside another.
'tin' going around 'a' is 'tain'.
'enter'+'tain'='ENTERTAIN'
Can you help me to learn more?
(Other definitions for entertain that I've seen before include "Amuse; host" , "Please < flirt with" , "Amuse, divert" , "Keep in mind" , "Play host to" .)