In auction, order for biblical dancer (6)
I believe the answer is:
salome
'biblical dancer' is the definition.
(figure who famously dances in the Bible)
'in auction order' is the wordplay.
'in' means one lot of letters goes inside another.
'auction' becomes 'sale' (type of sale).
'order' becomes 'om' (Order of Merit).
'sale' enclosing 'om' is 'SALOME'.
'for' is the link.
(Other definitions for salome that I've seen before include "She danced with seven veils for the Baptist's head" , "Her dancing pleased Herod" , "She danced for the head of John the Baptist" , "Seven veils dancer" , "Seven veils dance girl" .)