Receive hot dog (5)
I believe the answer is:
incur
'receive' is the definition.
The answer and definition can be both to do with fundamental existence as well as being verbs in their base form.
Maybe you can see a link between them that I can't see?
'hot dog' is the wordplay.
'hot' becomes 'in' (both can mean fashionable).
'dog' becomes 'cur' (a cur is an aggressive or scruffy dog).
'in'+'cur'='INCUR'
Can you help me to learn more?
(Other definitions for incur that I've seen before include "Become liable to (something) through one's actions" , "Risk" , "contract" , "Lay oneself open to" , "Bring something unpleasant on oneself (5)" .)