A type of rhododendron with brightly coloured blooms (6)

I believe the answer is:

azalea

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'a type of rhododendron' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for azalea that I've seen before include "flower" , "Ericaceous plant" , "Flowering shrub related to rhododendrons" , "Rhododendron-type shrub" , "Shrub resembling a small rhododendron" .)

I've seen this clue in The Times.

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