Game in which a seed has plenty (6)
I believe the answer is:
pelota
'game' is the definition.
(pelota is a kind of game)
'a seed has plenty' is the wordplay.
'a seed' becomes 'pea' (I've seen this before).
'has' indicates putting letters inside.
'plenty' becomes 'lot' (I can't justify this - if you can you should believe this answer much more).
'pea' placed around 'lot' is 'PELOTA'.
'in which' is the link.
Can you help me to learn more?
(Other definitions for pelota that I've seen before include "Basque sport" , "Basque ball game" , "Spanish game played with a ball and wickerwork racket" , "Basque ball-game" , "SPORT/GAME" .)