Rush over to meet (3,6)
I believe the answer is:
run across
'meet' is the definition.
('run across' can be a synonym of 'meet')
'rush over' is the wordplay.
'rush' becomes 'run'.
'over' becomes 'across' ('across' can be a synonym of 'over').
'run'+'across'='RUN ACROSS'
'to' is the link.
(Other definitions for run across that I've seen before include "what this answer doesn't do" , "Quickly reach the other side" , "Unexpectedly meet" , "what some answers do here" , "Happen" .)