Open-air tour organised around party circle (7)
I believe the answer is:
outdoor
'open-air' is the definition.
(similar in meaning)
'tour organised around party circle' is the wordplay.
I cannot really understand how this works, but
'around' could be 'o' (a round letter) and 'o' is found in the answer.
'party' could be 'do' (do is a kind of party) and 'do' is located in the answer.
an anagram of 'tour' is 'utor' which is located in the left over letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for outdoor that I've seen before include "Open-air" , "not under cover" , "Alfresco - sort of pursuits" , "Done in the open" , "This sport is not under a roof" .)