Hope to have drive and energy in the morning (5)
I believe the answer is:
Here is my best explanation:
'hope' is the definition.
(I've seen this before)
'drive and energy in the morning' is the wordplay.
'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' acts as a link.
(Other definitions for dream that I've seen before include "Ideal", "Bedroom vision?", "Cherished hope or ideal", "Vision - very pleasant person", "Armed (anag)", "dozy state", "Something imaginary", "Part of sleep", "(Have) vision" and "Cherished hope; reverie".)