Mad terrorists appearing from both directions with common end (5)
I believe the answer is:
irate
'mad' is the definition.
(I've seen this before)
'terrorists appearing from both directions with common end' is the wordplay.
I cannot really see how this works, but
'terrorists' could be 'ira' (Irish Republican Army) and 'ira' is found in the answer.
'from' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
'both' could be 't' (I've seen this in other clues) and 't' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for irate that I've seen before include "Indignant, angry" , "Annoyed, irritated" , "Not happy" , "A tier (anag)" , "Extremely angry" .)