Meet Charlie, Scottish explorer (5)
I believe the answer is:
cross
'meet' is the definition.
(I know that cross is a more specific form of the action meet)
'charlie scottish explorer' is the wordplay.
'charlie' becomes 'C' (phonetic alphabet: alpha, bravo, charlie etc.).
'scottish explorer' becomes 'Ross' (19th-century explorer John Ross).
'c'+'ross'='CROSS'
(Other definitions for cross that I've seen before include "Burden" , "winger's pass" , "Ford" , "Grouchy" , "means of execution" .)