Drug case stirring up memories (9)
I believe the answer is:
evocative
'stirring up memories' is the definition.
'evocative' can be an answer for 'stirring' (thesaurus). I am unsure of the 'up memories' bit.
'drug case' is the wordplay.
'drug' becomes 'e' (E is another name for ecstasy).
'case' becomes 'vocative' (the vocative case in grammar).
'e'+'vocative'='EVOCATIVE'
Can you help me to learn more?
(Other definitions for evocative that I've seen before include "Reminiscent, resonant" , "recalling the past" , "Calling up strong images" , "Bringing a feeling vividly to mind" , "summoning up bygone age" .)