Star feature reports lad's marijuana (7)
I believe the answer is:
sunspot
'star feature reports' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'lad's marijuana' is the wordplay.
'lad's' becomes 'suns' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'marijuana' becomes 'pot' (slang term for marijuana).
'suns'+'pot'='SUNSPOT'
Can you help me to learn more?
(Other definitions for sunspot that I've seen before include "relatively dark situation" , "Cool darker patch on our star" , "Cool solar area" , "Solar surface blemish" , "Solar cool patch" .)