Proud walk of good person — something groovy (5)
I believe the answer is:
strut
'proud walk' is the definition.
'strut' can be an answer for 'walk' (strut is a kind of walk). I'm not sure about the 'proud' bit.
'good person something groovy' is the wordplay.
'good person' becomes 'st' (saint).
'something groovy' becomes 'rut' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'st'+'rut'='STRUT'
'of' is the link.
Can you help me to learn more?
(Other definitions for strut that I've seen before include "Walk proudly; bar" , "Trust (anag.)" , "that provides support" , "Walk with a lofty proud gait" , "Supporting bar" .)