Highly dangerous kind of walk (9)
I believe the answer is:
tightrope
'highly dangerous kind of walk' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for tightrope that I've seen before include "High wire" , "Acrobats perform on it, usually with safety net" , "Acrobat's wire" , "On which acrobats walk" , "Balancing act wire" .)