Goshen evacuated and the Nile laid waste to give spiritual insight (9)
I believe the answer is:
enlighten
'goshen evacuated' is the definition.
I can't judge whether this definition defines the answer.
'the nile laid waste to give spiritual insight' is the wordplay.
I cannot quite see how this works, but
an anagram of 'the' is 'hte' which is located in the answer.
an anagram of 'nile' is 'enli' which is within the answer.
This may be the basis of clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for enlighten that I've seen before include "Explain" , "Illuminate" , "Educate, inform" , "Brief" , "free from superstition" .)