Simple deposits in retirement I'd endorsed (6)
I believe the answer is:
stupid
'endorsed' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?
'simple deposits in retirement i'd' is the wordplay.
'simple deposits' becomes 'puts' (I've seen this in another clue. I am not sure about the 'simple' bit.).
'in retirement' says the letters should be written in reverse (retire can mean to go back or backwards).
'puts' written backwards gives 'stup'.
'stup'+'id'='STUPID'
Can you help me to learn more?
(Other definitions for stupid that I've seen before include "Gormless" , "Lacking wit or intelligence" , "moronic" , "Crass" , "potty" .)