Try physical training, taking in university field event (4,3)
I believe the answer is:
shot put
'field event' is the definition.
(shot put is a kind of field event)
'try physical training taking in university' is the wordplay.
'try' becomes 'shot' (both can mean an attempt).
'physical training' becomes 'PT' (Physical Training).
'taking in' indicates putting letters inside.
'university' becomes 'U' (abbreviation as in UMass).
'pt' placed around 'u' is 'put'.
'shot'+'put'='SHOT-PUT'
(Other definitions for shot put that I've seen before include "Throwing event" , "Competition in which a heavy metal ball is hurled" , "Olympic event" , "Field event in athletics" , "Athletic field event" .)