Initially, bulbs have no colour (5)

I believe the answer is:

black

I'm a little stuck... Click here to teach me more about this clue!

'colour' is the definition.
(black is a kind of colour)

'initially bulbs have no' is the wordplay.
'initially' says to take the initial letters.
'have no' becomes 'lack' (I am not sure about this - if you are sure you should believe this answer much more).
The first letter of 'bulbs' is 'b'.
'b'+'lack'='BLACK'

Can you help me to learn more?

(Other definitions for black that I've seen before include "Extremely dark" , "Like clubs and spades" , "Dirty" , "Desperate" , "Very darkest colour" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.