Sleepy youth leader with sword turning up (6)
I believe the answer is:
drowsy
'sleepy' is the definition.
(I've seen this before)
'youth leader with sword turning up' is the wordplay.
'youth leader' becomes 'y' (I've seen this in other clues).
'with' is a charade indicator (letters next to each other).
'turning up' is a reversal indicator.
'sword' written backwards gives 'drows'.
'y' after 'drows' is 'DROWSY'.
(Other definitions for drowsy that I've seen before include "Dull" , "Wanting to nod off" , "Inclined to nod off" , "liable to drop off" , "Nodding off" .)