Dance of Bedouin, say, in desert (8)
I believe the answer is:
saraband
'dance' is the definition.
(I know that saraband is a type of dance)
'bedouin say in desert' is the wordplay.
'bedouin say' becomes 'Arab' (bedouin is a kind of Arab).
'in' is an insertion indicator.
'desert' becomes 'sand' (I've seen this before).
'arab' inserted into 'sand' is 'SARABAND'.
'of' acts as a link.
(Other definitions for saraband that I've seen before include "dance music" , "Old, courtly dance" , "Slow Spanish dance" , "Stately dance" .)