Keenly targeting goal but I aim so badly (9)
I believe the answer is:
ambitious
'keenly targeting goal' is the definition.
'but i aim so badly' is the wordplay.
'badly' is an anagram indicator.
'but'+'i'+'aim'+'so'='butiaimso'
'butiaimso' anagrammed gives 'AMBITIOUS'.
(Other definitions for ambitious that I've seen before include "Aspiring" , "Keen to succeed" , "Seeking success" , "Bold - pushy" , "Having a strong desire for success" .)