Tinker holds a leisurely course (7)
I believe the answer is:
meander
'leisurely course' is the definition.
The definition and answer can be both to do with motion as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'tinker holds a' is the wordplay.
'tinker' becomes 'mender' (synonyms).
'holds' is an insertion indicator.
'mender' placed around 'a' is 'MEANDER'.
Can you help me to learn more?
(Other definitions for meander that I've seen before include "Wander idly" , "Zigzag" , "Renamed in order to wander in leisurely way" , "turning thereon?" , "(Of river) wander" .)