Host's invitation to wake? (4,5)
I believe the answer is:
come round
'host's' is the definition.
Although both the answer and definition are verbs in their base form, I don't understand how one could define the other.
'invitation to wake?' is the wordplay.
'invitation' becomes 'come' (an invitation to come).
'to wake?' becomes 'round' (I am not sure about this - if you are sure you should believe this answer much more).
'come'+'round'='COME-ROUND'
Can you help me to learn more?
(Other definitions for come round that I've seen before include "Recover consciousness" , "Be persuaded" , "Finally agree" , "as someone who's been out may do" , "revived" .)