Blooming cluster get there before I do! (6)
I believe the answer is:
raceme
'blooming cluster' is the definition.
'raceme' can be an answer for 'cluster' (I've seen this before). I am unsure of the 'blooming' bit.
'there before i do' is the wordplay.
I cannot really see how this works, but
'before' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
'i' could be 'me' and 'me' is present in the answer.
This explanation may well be incorrect...
'get' acts as a link.
Can you help me to learn more?
(Other definitions for raceme that I've seen before include "Elongated flower cluster" , "Long cluster of flowers on one stem" , "Care about me with flowers spaced along a central stem" , "Flower cluster (botany)" , "Cluster of flowers along a central stem" .)