Fix match -- agree about bagging wicket (3,4)
I believe the answer is:
tie down
'fix' is the definition.
(fix can mean to tie down or secure)
'match agree about bagging wicket' is the wordplay.
'match' becomes 'tie' (tie can mean a sporting fixture).
'agree' becomes 'nod' (I've seen this before).
'about' says the letters should be written in reverse.
'bagging' indicates putting letters inside (bag can mean to take or obtain).
'wicket' becomes 'w'.
'nod' back-to-front is 'don'.
'don' going around 'w' is 'down'.
'tie'+'down'='TIE DOWN'
(Other definitions for tie down that I've seen before include "Fix; bind by conditions" , "Restrict" , "Restrain with ropes" , "Bind by conditions - to widen (anag)" .)