Part of a boxer's "tale of the tape" (5)
I believe the answer is:
reach
'part of a boxer's tale of the tape' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reach that I've seen before include "Hands up" , "Arrive at (a place)" , "Come up to - stretch between bends" , "Scope; get to" , "Arrive at a point" .)