Virginia George to sign for erratic impulses (8)
I believe the answer is:
'erratic impulses' is the definition.
'vagaries' can be an answer for 'impulses' ('vagary' can be a synonym of 'impulse'). I am not sure about the 'erratic' bit.
'virginia george to sign' is the wordplay.
'virginia' becomes 'va' (US state abbreviation).
'george' becomes 'g'.
'to sign' becomes 'Aries' (star sign).
'for' is the link.
Can you help me to learn more?
(Other definitions for vagaries that I've seen before include "unpredictable changes" , "Whims" , "Capricious acts or ideas" , "uncertainties" , "Unpredictable occurrences" .)