One way to loaf is to walk leisurely (6)
I believe the answer is:
stroll
'to walk leisurely' is the definition.
(I've seen this in another clue)
'one way to loaf' is the wordplay.
'one way' becomes 'st' (abbreviation for street).
'to loaf' becomes 'roll' (I am not sure about this - if you are sure you should believe this answer much more).
'st'+'roll'='STROLL'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for stroll that I've seen before include "gentle pace" , "A quiet, pleasant walk" , "Amble along" , "Walk casually" , "Constitutional" .)