Charlie's excited consuming a new cheese (10)
I believe the answer is:
lancashire
'cheese' is the definition.
(I've seen this before)
'charlie's excited consuming a new' is the wordplay.
'excited' indicates an anagram.
'consuming' means one lot of letters goes inside another.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'charlies' is an anagram of 'lcashire'.
'a'+'n'='an'
'lcashire' placed around 'an' is 'LANCASHIRE'.
(Other definitions for lancashire that I've seen before include "it includes Leyland" , "Stew from the Northwest" , "Crumbly white cheese" , "North-Western county" , "Part of country" .)