Present meant to be received by egghead, then (9)
I believe the answer is:
therefore
'then' is the definition.
(thesaurus)
'present meant to be received by egghead' is the wordplay.
I cannot really see how this works, but
'present' could be 'there' (someone present somewhere is 'there') and 'there' is found in the answer.
'to' could be 'for' and 'for' is found in the answer.
'egghead' could be 'e' (head letter of 'egg') and 'e' is found within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for therefore that I've seen before include "Consequently - for that reason" , "has a triangular formation in maths?" , "as result" , "Thus" , "It follows" .)