Even six pence extremely bad — too much money (9)
I believe the answer is:
expensive
'even six pence extremely bad too much money' is the definition.
I can't judge whether this defines the answer.
'even six pence extremely bad' is the wordplay.
'extremely' means to remove the middle letters (only the extremes of the word are used).
'bad' indicates an anagram.
'pence' with its middle removed is 'pe'.
'even'+'six'+'pe'='evensixpe'
'evensixpe' anagrammed gives 'EXPENSIVE'.
Can you help me to learn more?
(Other definitions for expensive that I've seen before include "Highly-priced" , "Pricey" , "High in price" , "Charging a lot" , "priceless" .)