Journey taken by Welsh leader - one about to find booby trap (8)
I believe the answer is:
tripwire
'booby trap' is the definition.
Both the answer and definition are singular nouns.
Maybe there's a link between them I don't understand?
'journey taken by welsh leader one about to' is the wordplay.
'journey' becomes 'trip' (trip is a kind of journey).
'taken by' says to put letters next to each other.
'leader' suggests taking the first letters.
'one about to' becomes 'ire' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'welsh' is 'w'.
'trip'+'w'+'ire'='TRIPWIRE'
'find' is the link.
Can you help me to learn more?
(Other definitions for tripwire that I've seen before include "One setting off" , "Trigger for booby trap" , "Trigger line" , "Device working a trap or alarm when stumbled over" , "This may trigger alarm" .)