Bury group with cross (9)
I believe the answer is:
intersect
'cross' is the definition.
(I know that cross can be written as intersect)
'bury group' is the wordplay.
'bury' becomes 'inter' (to inter is to put into the ground).
'group' becomes 'sect' (I've seen this in other clues).
'inter'+'sect'='INTERSECT'
'with' is the link.
(Other definitions for intersect that I've seen before include "Divide into parts" , "making one cross" , "Meet at a point" , "Cut across" , "Criss-cross" .)