Join to get a bit of basic education during May (5)
I believe the answer is:
marry
'join' is the definition.
(I know that marry is a more specific form of the action unify)
'a bit of basic education during may' is the wordplay.
'a bit of basic education' becomes 'rr' (I can't justify this - if you can you should give a lot more credence to this answer).
'during' indicates putting letters inside.
'rr' placed inside 'may' is 'MARRY'.
'to get' is the link.
Can you help me to learn more?
(Other definitions for marry that I've seen before include "Join - get wed" , "Gain a wife or husband" , "Tie the knot; why! (Shak.)" , "Get hitched" , "Unite; gosh! (arch.)" .)