The odd buffoon's ejected from extraterrestrial carriers (4)
I believe the answer is:
ufos
'ejected from extraterrestrial carriers' is the definition.
I can't tell whether this definition defines the answer.
'the odd buffoon's' is the wordplay.
'the odd' indicates alternate letters.
The alternate letters of 'buffoons' are 'UFOS'.
Can you help me to learn more?
(Other definitions for ufos that I've seen before include "Potential alien craft" , "Mysterious objects in sky" , "Supposed alien craft" , "Supposed spaceships" , "Strange aerial objects" .)