When I play host, it is in order! (11)
I believe the answer is:
hospitality
'when i play host it is in order' is the definition.
I can't judge whether this definition defines the answer.
'i play host it is in order' is the wordplay.
'is in order' indicates an anagram (the letters in a new order).
'i'+'play'+'host'+'it'='iplayhostit'
'iplayhostit' with letters rearranged gives 'HOSPITALITY'.
Can you help me to learn more?
(Other definitions for hospitality that I've seen before include "Readiness to welcome guests" , "Cordial entertainment of guests" , "Kindness in welcoming guests" .)