Go out more? Missing Yankee’s not spotted (9)
I believe the answer is:
stainless
'spotted' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?
'go out more? missing yankee's not' is the wordplay.
'go out more? missing yankee's' becomes 'stain' (I can't explain this - if you can you should give a lot more credence to this answer).
'not' becomes 'less' (I've seen this in other clues).
'stain'+'less'='STAINLESS'
Can you help me to learn more?
(Other definitions for stainless that I've seen before include "Squeaky-clean" , "Unmarked" , "Not liable to tarnish" , "Resistant to marking" , "Immaculate" .)