Gain access to latrine, fit for conversion (10)
I believe the answer is:
infiltrate
'gain access' is the definition.
The answer and definition can be both to do with motion as well as being verbs in their base form.
Maybe there's an association between them I don't understand?
'latrine fit for conversion' is the wordplay.
'for conversion' indicates an anagram (I've seen this in other clues).
'latrine'+'fit'='latrinefit'
'latrinefit' with letters rearranged gives 'INFILTRATE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for infiltrate that I've seen before include "Worm one's way into" , "gradually sink in" , "Slowly and secretly gain access to (an organisation)" , "enter secretly" , "Sneak into" .)