After the end of tennis, seem a waste of seeds (6)
I believe the answer is:
sesame
'of seeds' is the definition.
The definition suggests a singular noun which matches the answer.
'after the end of tennis seem a waste' is the wordplay.
'after' says to put letters next to each other.
'the end of' says to take the final letters.
'waste' is an anagram indicator (I've seen 'wasted' mean this).
The last letter of 'tennis' is 's'.
'seem'+'a'='seema'
'seema' anagrammed gives 'esame'.
's' put next to 'esame' is 'SESAME'.
Can you help me to learn more?
(Other definitions for sesame that I've seen before include "Oil plant from Ali Baba's cry" , "'Open - - !' (Ali Baba)" , "Oil-producing plant" , "Opening word for a magician" , "Plant with edible seeds" .)