Call up first woman with average (5)
I believe the answer is:
evoke
'call up' is the definition.
(I know that evoke is a kind of call up)
'woman with average' is the wordplay.
'woman' becomes 'Eve' (Eve is an example).
'with' is an insertion indicator.
'average' becomes 'ok' (I can't justify this - if you can you should give a lot more credence to this answer).
'eve' enclosing 'ok' is 'EVOKE'.
'first' is the link.
Can you help me to learn more?
(Other definitions for evoke that I've seen before include "Raise" , "bring forth" , "Call back (memories)" , "Arouse" , "Elicit (a response)" .)