Literary lion using a lot of dodgy language? (5)
I believe the answer is:
aslan
'literary lion' is the definition.
(lion in CS Lewis' Narnia books)
'a lot of dodgy language?' is the wordplay.
'lot of' means to remove the last letter (a lot of the word but not all of it).
'dodgy language?' becomes 'slang' (informal language).
'slang' with its last letter taken off is 'slan'.
'a'+'slan'='ASLAN'
'using' acts as a link.
(Other definitions for aslan that I've seen before include "Narnia's "Great Lion"" , "Lion in the Chronicles of Narnia" , "Noble lion" , "Saviour figure" , "Lewis's character" .)