Individual’s trapped male deer — a tragedy may unfold here (7)
I believe the answer is:
onstage
'a tragedy may unfold here' is the definition.
(a tragedy might be performed on stage)
'individual's trapped male deer' is the wordplay.
'individual' becomes 'one' (an individual is one person).
'trapped' indicates putting letters inside.
'male deer' becomes 'stag' (I've seen this in another clue).
'one' going around 'stag' is 'ONSTAGE'.
(Other definitions for onstage that I've seen before include "(Of actor) visible to the audience" , "Facing house" , "as a player may be?" , "Acting" , "in full view of the audience" .)