Rush and impress newspaper boss with energy (8)
I believe the answer is:
stampede
'rush' is the definition.
(I've seen this in another clue)
'impress newspaper boss with energy' is the wordplay.
'impress' becomes 'stamp' (stamping is a kind of impressing).
'newspaper boss' becomes 'ed' (short for editor).
'with' is a charade indicator (letters next to each other).
'energy' becomes 'e' (physics symbol as in E=mct).
'stamp'+'ed'+'e'='STAMPEDE'
'and' is the link.
(Other definitions for stampede that I've seen before include "Flight of cattle in panic" , "Crazy pets made a sudden rush" , "Sudden dash of a group of startled animals" , "A flight of frightened cattle" , "Headlong rush of animals" .)