He’ll tell you spring is here (7)
I believe the answer is:
diviner
This clue could be a double definition.
'he'll tell you spring' is the first definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'here' is the second definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'is' is the link.
Can you help me to learn more?
(Other definitions for diviner that I've seen before include "Expert at finding liquid assets" , "more godlike" , "A soothsayer" , "More sacred" , "He finds water" .)