Spanish noble concealed a large order (7)
I believe the answer is:
hidalgo
'spanish noble' is the definition.
'hidalgo' can be an answer for 'noble' (thesaurus). I am not sure about the 'spanish' bit.
'concealed a large order' is the wordplay.
'concealed' becomes 'hid' ('hide' can be a synonym of 'conceal').
'large' becomes 'l'.
'order' becomes 'go' (I can't explain this - if you can you should believe this answer much more).
'hid'+'a'+'l'+'go'='HIDALGO'
Can you help me to learn more?
(Other definitions for hidalgo that I've seen before include "Spanish aristocrat" , "foreign gentleman" , "Grandee" , "Pachuca is capital of this Mexican state" , "Spanish nobleman" .)