Film tempers their irritation announcing president's return (3,6,7,4)
I believe the answer is:
the empire strikes back
'their irritation announcing president's return' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'film tempers' is the wordplay.
I cannot quite understand how this works, but
'film' could be 'kes' (I've seen this before) and 'kes' is found in the answer.
'tempers' could be 'ires' (I've seen this in another clue) and 'ires' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for the empire strikes back that I've seen is " Star Wars film".)