Pass former partner and offspring, say (6)
I believe the answer is:
exceed
'pass' is the definition.
(synonyms)
'former partner and offspring say' is the wordplay.
I cannot really understand how this works, but
'former' could be 'ex' (prefix meaning former or onetime) and 'ex' is located in the answer.
'partner' could be 'e' and 'e' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for exceed that I've seen before include "Bud used as spice" , "Beat" , "Outstrip" , "Go past, outdo" , "Go beyond, surpass" .)