Being sarcastic gets one right ahead, I see (6)
I believe the answer is:
ironic
'being sarcastic' is the definition.
('ironic' can be similar in meaning to 'sarcastic')
'one right ahead i see' is the wordplay.
'one' becomes 'i' (roman numeral).
'right' becomes 'r' (common abbreviation).
'ahead' becomes 'on' (synonyms).
'see' becomes 'c' (the word for the letter, according to Chambers).
'i'+'r'+'on'+'i'+'c'='IRONIC'
'gets' is the link.
(Other definitions for ironic that I've seen before include "Wry, sardonic" , "Describes a statement that says the opposite of what is clearly the case" , "turning out unexpectedly" , "Paradoxical or sarcastic" , "Perverse or sarcastic in expressing opinion (6)" .)