Drone playing amid your old lament (8)
I believe the answer is:
threnody
'lament' is the definition.
(I've seen this before)
'drone playing amid your old' is the wordplay.
'playing' indicates an anagram.
'amid' is an insertion indicator.
'your old' becomes 'thy'.
'drone' anagrammed gives 'renod'.
'renod' inserted into 'thy' is 'THRENODY'.
(Other definitions for threnody that I've seen before include "Dirge" , "Do try hen (anag.)" , "A song of lamentation" , "A lament" .)