Energetic person, 50, with strange view, and anger (4,4)
I believe the answer is:
live wire
'energetic person' is the definition.
(I've seen this before)
'50 with strange view and anger' is the wordplay.
'50 with' becomes 'l' (I can't justify this - if you can you should believe this answer much more).
'strange' indicates an anagram.
'and' says to put letters next to each other.
'anger' becomes 'ire' (synonyms).
'view' with letters rearranged gives 'ivew'.
'l'+'ivew'+'ire'='LIVE WIRE'
(Other definitions for live wire that I've seen before include "Brown covering for this" , "Energetic and unpredictable person" , "Life and soul of party" , "A person with intense energy" , "Alert and enthusiastic person" .)