Elder not terribly reminiscent (8)
I believe the answer is:
redolent
'reminiscent' is the definition.
(I know that reminiscent can be written as redolent)
'elder not terribly' is the wordplay.
'terribly' is an anagram indicator.
'elder'+'not'='eldernot'
'eldernot' with letters rearranged gives 'REDOLENT'.
(Other definitions for redolent that I've seen before include "Smelling strongly or suggestive of it" , "Smelling of, evocative" , "Do relent, being full of memories or smells" , "Aromatic" , "Strongly reminiscent (of something)" .)