Wanting Conservative to be overcome with alarm (6)
I believe the answer is:
scarce
'wanting' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for scarce that I've seen before include "Wanting" , "Hard to get" , "Hardly" , "Few and far between" , "Rarely found" .)