Crossword Genius

Wait to start a game of ping-pong? (5,2,5)

Ross

I believe the answer is:

serve at table

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

'wait to start a game of ping-pong?' is the definition.
I can't judge whether this definition defines the answer.

'wait to start a game of ping-pong?' is the wordplay.
'wait' becomes 'serve' (to wait on someone is to serve them).
'to start' is a charade indicator (letters next to each other).
'a game of ping pong?' becomes 'attable' (I am not sure about this - if you are sure you should believe this answer much more).
'serve'+'attable'='SERVE AT TABLE'

Can you help me to learn more?

I've seen this clue in The Guardian and The Globe and Mail.
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