Date tree is transplanted in springtime (10)
I believe the answer is:
eastertide
'springtime' is the definition.
The definition and answer can be both related to time as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'date tree is transplanted' is the wordplay.
'transplanted' indicates an anagram.
'date'+'tree'+'is'='datetreeis'
'datetreeis' with letters rearranged gives 'EASTERTIDE'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for eastertide that I've seen before include "Christian festival period" , "when the loveliest of trees wears white?" , "Period of Spring festival" , "Holy festival period" , "festive season" .)