The very beginning of a fire in a seafront playground (5)

I believe the answer is:

spark

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

'fire in a seafront playground' is the definition.
'spark' can be an answer for 'fire' (thesaurus). I'm not certain of the 'in a seafront playground' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for spark that I've seen before include "Particle of fire" , "Quantity of electricity" , "Clever person" , "Means of ignition" , "Tiny, red-hot particle" .)

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.