Headache rubbed while carrying innocent-looking toddler (6)

I believe the answer is:

cherub

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

'innocent-looking toddler' is the definition.
I can't judge whether this definition defines the answer.

'headache rubbed while carrying' is the wordplay.
'carrying' says the answer is hidden in the clue.
'CHERUB' is hidden within 'headache rubbed while'.

Can you help me to learn more?

(Other definitions for cherub that I've seen before include "Lovely child" , "A heavenly winged child" , "Angel portrayed as a winged child" , "sweet infant" , "Sweet innocent baby" .)

I've seen this clue in The Irish Times.

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