Anger once as dog close to group disrupted kids’ event (3-3-5,4)

I believe the answer is:

egg-and-spoon race

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'kids' event' is the definition.
'egg and spoon race' can be an answer for 'event' (I've seen this before). I am not certain of the 'kids'' bit.

'anger once as dog close to group disrupted' is the wordplay.
'close to' says to take the final letters (the close/ending of).
'disrupted' indicates an anagram.
The last letter of 'group' is 'p'.
'anger'+'once'+'as'+'dog'+'p'='angeronceasdogp'
'angeronceasdogp' with letters rearranged gives 'EGG-AND-SPOON-RACE'.

Can you help me to learn more?

(Another definition for egg-and-spoon race that I've seen is " Handicapped running contest".)

I've seen this clue in The Times.

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