Spooner's diver could have another job (9)
I believe the answer is:
moonlight
'spooner's diver' is the definition.
I can't judge whether this definition defines the answer.
'could have another job' is the wordplay.
'could' becomes 'might' (synonyms).
'have' indicates putting letters inside.
'another' becomes 'o' (I've seen this in other clues).
'job' becomes 'onl' (I can't explain this - if you can you should believe this answer much more).
'o'+'onl'='oonl'
'might' going around 'oonl' is 'MOONLIGHT'.
Can you help me to learn more?
(Other definitions for moonlight that I've seen before include "Steerer of boat" , "Perform work at night" , "Lunar rays seen in thin gloom" , "Beethoven's Op. twenty seven/two sonata" , "Illumination from the earth's satellite" .)