TWO RHYMING RIDDLES

1)

An expression often used when feminine beauty is seen,

Or a completely flawless gymnastics routine;

Where the big hand is at fifty after one,

I'm in the corners surrounding Alexander Hamilton.

2)

I'm never there when you need me,

For me you have to wait;

I provide a wealth of knowledge,

But always just too late.

Answer:

1. TEN

2. Hindsight/experience