Make beloved's last years content (6)
I believe the answer is:
endear
'make beloved's' is the definition.
(I've seen this in another clue)
'last years content' is the wordplay.
'last' becomes 'end' (I've seen this in another clue).
'content' indicates the central letters.
The middle of 'years' is 'ear'.
'end'+'ear'='ENDEAR'
(Other definitions for endear that I've seen before include "Draw" , "Neared (anag.)" , "Earned (anag.)" , "Make lovable or please" , "ingratiate" .)