Put at risk, call a halt to wrath (8)
I believe the answer is:
endanger
'put at risk' is the definition.
(I've seen this before)
'call a halt to wrath' is the wordplay.
'call a halt to' becomes 'end' (I've seen this in another clue).
'wrath' becomes 'anger' (synonyms).
'end'+'anger'='ENDANGER'
(Other definitions for endanger that I've seen before include "Dan Green (anag.)" , "Place into peril, jeopardise" , "Put in harm's way" , "Hazard" , "Put someone at risk" .)