Standard achieved without Mike in street procession (6)
I believe the answer is:
parade
'street procession' is the definition.
(procession along a street)
'standard achieved without mike' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'achieved' becomes 'made' (make can mean to achieve or reach).
'without' indicates named letters should be taken away.
'mike' becomes 'M' (phonetic alphabet: alpha, bravo, charlie etc.).
'made' with 'm' taken out is 'ade'.
'par'+'ade'='PARADE'
'in' is the link.
(Other definitions for parade that I've seen before include "March past" , "March-past of troops etc." , "'Procession of bands, floats, etc (6)'" , "Air - display" , "Easter ___ , 1948 film with Judy Garland and Fred Astaire" .)