Jock's shot American in tense situation (5)
I believe the answer is:
drama
'situation' is the definition.
(I have seen 'Emotional situation' mean 'drama' so perhaps 'situation' could also mean 'drama')
'jock's shot american in tense' is the wordplay.
I cannot really see how this works, but
'shot' could be 'dram' (of whisky say) and 'dram' is present in the answer.
'american' could be 'a' (common abbreviation - e.g. in organisation names) and 'a' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for drama that I've seen before include "Hamlet, say" , "Serious play" , "Play - big emotional scene" , "High emotion" , "Literary play" .)