Son is out of mementos of old Irish revolutionary (5)
I believe the answer is:
emmet
This clue could be a double definition.
'son' is the first definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'out of mementos of old irish revolutionary' is the second definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for emmet that I've seen before include "Robert ...., .... Bergin," , "Hill-dweller" , "one holidaying in Cornwall" , "tourist in Cornwall" , "Irish nationalist - archaic ant - Cornish holiday-maker" .)