Search cure-all ultimately in epidemic (5)
I believe the answer is:
rifle
'search cure' is the definition.
'rifle' can be an answer for 'search' (I've seen this before). I am unsure of the 'cure' bit.
'all ultimately in epidemic' is the wordplay.
'ultimately' suggests the final letters.
'in' indicates putting letters inside.
'epidemic' becomes 'rife' (I've seen this in another clue).
The final letter of 'all' is 'l'.
'l' put inside 'rife' is 'RIFLE'.
Can you help me to learn more?
(Other definitions for rifle that I've seen before include "Carbine" , "One that has stock" , "Standard military gun fired from shoulder" , "Gun; plunder" , "Sack; firearm" .)