Rooms oddly chosen, very possibly where visitors crashed? (7)
I believe the answer is:
roswell
'where visitors crashed?' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'rooms oddly chosen very' is the wordplay.
I cannot really see how this works, but
'very' could be 'well' (can informally mean 'very') and 'well' is found within the answer.
This may be the basis of clue (or it may be nonsense).
'possibly' is the link.
Can you help me to learn more?
(Other definitions for roswell that I've seen before include "town in New Mexico" , "New Mexico city" .)