Apprehension about one flaky financial period (6,4)

I believe the answer is:

fiscal year

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

'financial period' is the definition.
'fiscal year' can be an answer for 'period' (fiscal year is a kind of period). I'm unsure of the 'financial' bit.

'apprehension about one flaky' is the wordplay.
'apprehension' becomes 'fear' (I've seen this in another clue).
'about' is an insertion indicator.
'one' becomes 'i' (Roman numeral).
'flaky' becomes 'scaly' (I've seen this in another clue).
'i'+'scaly'='iscaly'
'fear' enclosing 'iscaly' is 'FISCAL YEAR'.

Can you help me to learn more?

I've seen this clue in The Independent.

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