Give line out to show lure (8)
I believe the answer is:
inveigle
'lure' is the definition.
(to inveigle is to persuade or lure someone)
'give line out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'give'+'line'='giveline'
'giveline' anagrammed gives 'INVEIGLE'.
'to show' acts as a link.
(Other definitions for inveigle that I've seen before include "Persuade by cajolery" , "Persuade by trickery - given lie (anag)" , "Persuade by flattery" , "Coax, sweet-talk" , "use enticements" .)