The second delivery (7)
I believe the answer is:
rebirth
'the second delivery?' is the definition.
'rebirth' can be an answer for 'delivery?' (rebirth is a kind of delivery). I'm not sure about the 'the second' bit.
'second delivery?' is the wordplay.
'second' becomes 're' (prefix meaning second in eg review, re-education).
'delivery?' becomes 'birth' (the delivery of a baby).
're'+'birth'='REBIRTH'
Can you help me to learn more?
(Other definitions for rebirth that I've seen before include "Revival; reincarnation" , "Renaissance" , "Spiritual renewal" , "spiritual enlightenment" , "second coming" .)