Not worried - can point to an annuity (7)
I believe the answer is:
tontine
'to an annuity' is the definition.
(tontine is a kind of annuity)
'not worried can point' is the wordplay.
'worried' indicates an anagram (worry can mean to interfere with or disturb).
'can' becomes 'tin' (both are metal containers).
'point' becomes 'E' (compass point).
'not' is an anagram of 'ton'.
'ton'+'tin'+'e'='TONTINE'
(Other definitions for tontine that I've seen before include "Tin tone for a scheme of life annuity" , "financial enterprise" , "financial scheme" , "life assurance scheme" .)