Smuggle across to meet (3,6)
I believe the answer is:
run across
'meet' is the definition.
(synonyms)
'smuggle across' is the wordplay.
'smuggle' becomes 'run' (I've seen this in another clue).
'run'+'across'='RUN ACROSS'
'to' is the link.
(Other definitions for run across that I've seen before include "what some answers do here" , "By chance encounter" , "Chance upon" , "Quickly reach the other side" , "what this answer doesn't do" .)