Tailored to English flannel, making a soft spot for a baby (10)

I believe the answer is:

fontanelle

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'a soft spot for a baby' is the definition.
I can't judge whether this defines the answer.

'tailored to english flannel' is the wordplay.
'tailored' is an anagram indicator (the letters are customised ).
'english' becomes 'E' (abbreviation).
'to'+'e'+'flannel'='toeflannel'
'toeflannel' is an anagram of 'FONTANELLE'.

'making' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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