Turn to look at daughter described as fervently fanatical (10)

'described as fervently fanatical' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'turn to look at daughter' is the wordplay.
I cannot really see how this works, but
'turn' could be 'swivel' (swiveling is a kind of turning) and 'swivel' is located in the answer.
'look' could be 'eye' (eyeing is a kind of looking) and 'eye' is found in the answer.
'daughter' could be 'd' (genealogical abbreviation) and 'd' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?