Play, as a ukulele (5)
I believe the answer is:
strum
'play as a ukulele' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for strum that I've seen before include "'Sound the strings, musically (5)'" , "Play a stringed instrument (badly)" , "Play stringed instrument with sweep of hand" , "Play idly on guitar etc" , "Play with sweeps of fingers" .)