Award fixed in the memory (7)
I believe the answer is:
rosette
'award' is the definition.
(I've seen this before)
'fixed in the memory' is the wordplay.
'fixed' becomes 'set' ('set' can be a synonym of 'fixed').
'in the' indicates putting letters inside.
'memory' becomes 'rote' (as in 'learning by rote').
'set' put inside 'rote' is 'ROSETTE'.
(Other definitions for rosette that I've seen before include "Ribbony badge" , "Mark of affiliation" , "Pattern" , "Ribbon badge for prize-winner" , "Arrangement of ribbons presented as a prize" .)