Prepares to reproduce fancy vase, out to mould 50 (8)

'prepares to reproduce fancy' is the definition.
I can't judge whether this definition defines the answer.

'vase out to mould 50' is the wordplay.
'vase' becomes 'ovules' (I am not sure about this - if you are sure you should believe this answer much more).
'out' means one lot of letters goes inside another.
'to mould' becomes 'beat' (beating is a kind of moulding).
'e0' indicates taking half (e0 percent of the letters).
'beat' with half the letters taken is 'at'.
'ovules' enclosing 'at' is 'OVULATES'.

Can you help me to learn more?