Send out or bash in, possibly (6)
I believe the answer is:
banish
'send out' is the definition.
Although both the answer and definition are verbs in their base form, I cannot see how one could define the other.
'bash in possibly' is the wordplay.
'possibly' is an anagram indicator.
'bash'+'in'='bashin'
'bashin' is an anagram of 'BANISH'.
'or' acts as a link.
Can you help me to learn more?
(Other definitions for banish that I've seen before include "Exile in ash-bin" , "'Cast out, ostracise (6)'" , "Exile (someone)" , "Send (someone) away" , "Deport, exile" .)