Singer's asset: explosive anger (5)
I believe the answer is:
range
'singer's asset' is the definition.
(I've seen this in another clue)
'explosive anger' is the wordplay.
'explosive' is an anagram indicator.
'anger' is an anagram of 'RANGE'.
(Other definitions for range that I've seen before include "Stove; variety" , "Aga or mountain, perhaps?" , "Breadth (of variation)" , "Number of items in a series" , "Series, of mountains perhaps" .)