Another UFO to cut down (3,2,10)
I believe the answer is:
out of commission
'another' is the definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I don't see?
'ufo to cut down' is the wordplay.
I cannot quite understand how this works, but
'to' is within the answer.
an anagram of 'ufo' is 'ouf' which is within the remaining letters.
The remaining letters 'commission' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for out of commission that I've seen before include "Where agent usually gets money from" , "Not able to work" , "removed from body?" , "not working" , "Bust" .)