Exist as a permanent element ln this place (6)
I believe the answer is:
inhere
'exist' is the definition.
(thesaurus)
'as a permanent element ln this place' is the wordplay.
I cannot really see how this works, but
'as' could be 'in' (I've seen this in other clues) and 'in' is found within the answer.
'element' could be 're' (Re is an example) and 're' is present in the answer.
The remaining letters 'he' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for inhere that I've seen before include "Belong essentially" , "Stick" , "Exist essentially" , "Belong, live" , "Be a necessary element - at this place" .)