Flocks said to be seen in gardens (5)
I believe the answer is:
phlox
'be seen in gardens' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'flocks said' is the wordplay.
'said' indicates a 'sounds like' (homophone) clue.
'flocks' is a homophone of 'PHLOX'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for phlox that I've seen before include "Plant with white, red or purple flowers - sounds like groups of sheep" , "Plant with clusters of white, red or purple flowers" , "Plant bearing flowers" , "Flowering plant" , "may be in bed" .)