Exasperated striker's last time in terminus (7)
I believe the answer is:
enraged
'exasperated' is the definition.
Both the answer and definition are adjectives. Maybe you can see an association between them that I can't see?
'striker's last time in terminus' is the wordplay.
'last' indicates one should take the final letters.
'time' becomes 'age' (an age is a period of time).
'in' is an insertion indicator.
'terminus' becomes 'end' (eg the end of a train line is its terminus).
The last letter of 'striker' is 'r'.
'r'+'age'='rage'
'rage' placed within 'end' is 'ENRAGED'.
Can you help me to learn more?
(Other definitions for enraged that I've seen before include "with all guns blazing" , "Greatly angered" , "Infuriated, made mad" , "on the warpath?" , "Made very angry" .)