Absurd English not to be found in our clues, I'd fancy (9)
I believe the answer is:
ludicrous
'absurd' is the definition.
(I know that absurd can be written as ludicrous)
'english not to be found in our clues i'd fancy' is the wordplay.
'english' becomes 'e' (abbreviation).
'not to be found in' suggests deleting specific letters.
'fancy' indicates anagramming the letters.
'our'+'clues'+'id'='ourcluesid'
'ourcluesid' with 'e' removed is 'ourclusid'.
'ourclusid' anagrammed gives 'LUDICROUS'.
(Other definitions for ludicrous that I've seen before include "Nonsensical" , "Ridiculously foolish" , "Silly and laughable" , "Utterly laughable" , "Absurd, ridiculous" .)