Impressive quality as I march around (8)
I believe the answer is:
charisma
'impressive quality' is the definition.
(I've seen this before)
'as i march around' is the wordplay.
'around' indicates anagramming the letters.
'as'+'i'+'march'='asimarch'
'asimarch' anagrammed gives 'CHARISMA'.
(Other definitions for charisma that I've seen before include "Personal magnetism, great charm" , "attractive quality" , "Compelling attractiveness" , "Drawing power" , "divine power" .)