See forward tackling that man back (6)
I believe the answer is:
behold
'see' is the definition.
(I know that behold is a type of see)
'forward tackling that man back' is the wordplay.
'forward' becomes 'bold' (associated in meaning).
'tackling' indicates putting letters inside (to tackle is to take possession of).
'that man' becomes 'he' ('he' refers to a man).
'back' is a reversal indicator.
'he' reversed gives 'eh'.
'bold' placed around 'eh' is 'BEHOLD'.
(Other definitions for behold that I've seen before include "Archaic word for see or observe" , "See! Look!" , "Look at with attention" , "Archaic injunction to observe" , "Archaic injunction to look" .)