Figure runs into you (5)
I believe the answer is:
three
'figure' is the definition.
(three is a number or figure)
'runs into you' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'into' means one lot of letters goes inside another.
'you' becomes 'thee' (historical second person pronoun).
'r' going inside 'thee' is 'THREE'.
(Other definitions for three that I've seen before include "III" , "So many 12s today" , "Number constituting a crowd?" , "Bears or blind mice" , "Number of feet in a yard" .)