Has it a slow wriggle? (6)
I believe the answer is:
gentle
'slow wriggle?' is the definition.
'gentle' can be an answer for 'slow' (thesaurus). I'm not sure about the 'wriggle?' bit.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for gentle that I've seen before include "that may help angler catch fish" , "Not stern, coarse or violent" , "Not violent, tender" , "amiable" , "Not harsh or violent" .)