Hope to have drive and energy in the morning (5)
I believe the answer is:
Here is my best explanation:
'hope' is the definition.
'drive and energy in the morning' is the subsidiary indication.
'drive' becomes 'dr' (I've seen this in other clues).
'and' is a charade indicator (letters next to each other).
'energy' becomes 'e' (physics symbol as in E=mc2).
'in the morning' becomes 'am'.
'to have' is the link.
(Other definitions for dream that I've seen before include "Armed (anag)", "Cherished hope or ideal", "Vision - very pleasant person", "Nocturnal fantasy", "Bedroom vision?", "Ambition", "Switch off", "Cherished hope; reverie", "Perfect" and "(Have) vision".)