Respect wizard after half an hour (6)
I believe the answer is:
homage
'respect' is the definition.
(homage is a kind of respect)
'wizard after half an hour' is the wordplay.
'wizard' becomes 'mage' (mage can mean a wizard or magician).
'after' is a charade indicator (letters next to each other).
'half an' means to take half the letters.
'hour' with half the letters taken is 'ho'.
'mage' after 'ho' is 'HOMAGE'.
(Other definitions for homage that I've seen before include "Formal expression of loyalty to a ruler - pay it" , "Respect - acknowledgement of allegiance" , "Show of respect to someone" , "Public show of respect" , "Tribute, reverence" .)