All-inclusive cover for retirement (7)
I believe the answer is:
blanket
This clue could be a double definition.
'all-inclusive' is the first definition.
(synonyms)
'cover for retirement' is the second definition.
'blanket' can be an answer for 'cover' (blanketing is a kind of covering). I am unsure of the 'for retirement' bit.
Can you help me to learn more?
(Other definitions for blanket that I've seen before include "Thick item on bed" , "Bedcover" , "coating" , "Cover with a thick layer" , "warmer" .)