Traffic warden needs me to help after call (5,4)

I believe the answer is:

meter maid

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

'traffic warden' is the definition.
(I've seen this before)

'me to help after call' is the wordplay.
'to help' becomes 'maid' (help can mean servants).
'after' says to put letters next to each other.
'call' becomes 'ter' (I am not sure about this - if you are sure you should believe this answer much more).
'maid' after 'ter' is 'termaid'.
'me'+'termaid'='METER MAID'

'needs' acts as a link.

Can you help me to learn more?

(Another definition for meter maid that I've seen is " Traffic warden".)

I've seen this clue in The Telegraph.

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.