Document about English and British affected by fever (7)
I believe the answer is:
febrile
'affected by fever' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives sometimes define each other.
'document about english and british' is the wordplay.
'document' becomes 'file' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' indicates putting letters inside.
'english' becomes 'e' (abbreviation).
'and' is a charade indicator (letters next to each other).
'british' becomes 'br'.
'e'+'br'='ebr'
'file' going around 'ebr' is 'FEBRILE'.
Can you help me to learn more?
(Other definitions for febrile that I've seen before include "Of or involving a fever, feverish" , "Showing nervous excitement" , "Delirious" , "Overheated" , "Very hot" .)