Poison scare in new development (7)
I believe the answer is:
arsenic
'poison' is the definition.
(I've seen this before)
'scare in new development' is the wordplay.
'scare in' can be anagrammed to 'ARSENIC'.
However, I am not sure how the anagram is indicated.
Can you help me to learn more?
(Other definitions for arsenic that I've seen before include "-- and Old Lace (play)" , "Ratsbane" , "Poison found in races" , "Toxic metalloid element" , "Poison used in pesticides and weedkillers" .)