Agreed edges of tent should be arranged, precisely positioned (8)
I believe the answer is:
targeted
'precisely positioned' is the definition.
Although both the answer and definition are past participle verbs, I don't see how one could define the other.
'agreed edges of tent should be arranged' is the wordplay.
'edges of' suggests removing the centre.
'should be arranged' is an anagram indicator.
'tent' with its middle taken out is 'tt'.
'agreed'+'tt'='agreedtt'
'agreedtt' anagrammed gives 'TARGETED'.
Can you help me to learn more?
(Other definitions for targeted that I've seen before include "Took aim at (8)" , "Aimed at, or set as objective" , "Selected as an object to aim at" .)