Raised to desert pack (5)
I believe the answer is:
tarot
'pack' is the definition.
(type of card pack)
'raised to desert' is the wordplay.
'raised' is a reversal indicator.
'desert' becomes 'rat' (ratting is a kind of deserting).
'to'+'rat'='torat'
'torat' reversed gives 'TAROT'.
(Other definitions for tarot that I've seen before include "These cards are used by fortune tellers" , "Fortune teller" , "78-card pack" , "These cards are used to tell fortunes" , "Mystic cards" .)