Agreement as Telegraph shows discrimination? (5)
I believe the answer is:
taste
'discrimination?' is the definition.
(taste is a kind of discrimination)
'agreement as telegraph shows' is the wordplay.
'shows' says the answer is hidden in the clue.
'TASTE' is hidden in the letters of 'agreement as telegraph'.
(Other definitions for taste that I've seen before include "Take mouthful" , "Sensation of flavour" , "Sensation in the mouth caused by food" , "style" , "Judgment" .)