Approaches a beautiful woman, full of energy (7)
I believe the answer is:
avenues
'approaches' is the definition.
(I know this)
'a beautiful woman full of energy' is the wordplay.
'beautiful woman' becomes 'Venus' (goddess of love).
'full of' means one lot of letters goes inside another.
'energy' becomes 'e' (physics symbol as in E=mc2).
'venus' placed around 'e' is 'venues'.
'a'+'venues'='AVENUES'
(Other definitions for avenues that I've seen before include "City streets or methods of approach" , "Approaches" , "Tree-lined roads" .)