Or a little goat, say, with a plant (6)
I believe the answer is:
orchid
'plant' is the definition.
(I know that orchid is a type of flowering plant)
'or a little goat say' is the wordplay.
'a little goat say' becomes 'chid' (I can't explain this - if you can you should believe this answer much more).
'or'+'chid'='ORCHID'
'with a' acts as a link.
Can you help me to learn more?
(Other definitions for orchid that I've seen before include "elaborate bloomer" , "lady's slipper, perhaps" , "Exotic flower with strong perfume" , "Family of flowers with unusual shapes and beautiful colours" , "Unusually shaped, beautifully coloured flower" .)