Answer:
A poet could refer to the persona as a poet or it could also mean as an inspiration for someone to become poetic.
Step-by-step explanation:
At first glance, William Wordsworth could be considered as the persona in the poem; thus, the word "poet" could be referring to himself as he becomes gay or happy seeing the daffodils. On the other hand, it could refer to anybody who becomes inspired seeing the lovely flowers.