Crossword Genius

Figurine in op art, surprisingly a high price (3,6)

Ross

I believe the answer is:

top dollar

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

'a high price' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'figurine in op art surprisingly' is the wordplay.
'figurine' becomes 'doll' (I've seen this before).
'in' means one lot of letters goes inside another.
'surprisingly' is an anagram indicator (a surprising ordering of the letters).
'op'+'art'='opart'
'opart' is an anagram of 'topar'.
'doll' put within 'topar' is 'TOP-DOLLAR'.

Can you help me to learn more?

(Other definitions for top dollar that I've seen before include "high price?" , "High(est) price" , "The highest sum paid" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app