A drip is bad, so you need to be quick (5)

I believe the answer is:

rapid

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

'quick' is the definition.
(synonyms)

'a drip is bad' is the wordplay.
'is bad' is an anagram indicator (I've seen 'being bad' mean this).
'a'+'drip'='adrip'
'adrip' is an anagram of 'RAPID'.

'so you need to be' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for rapid that I've seen before include "Quick or swift" , "Fleet, swift" , "Fast, speedy" , "haste" , "Prompt" .)

I've seen this clue in the Evening Standard.

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.