Infinite movement in Leeds North and South (7)
I believe the answer is:
endless
'infinite' is the definition.
(similar in meaning)
'movement in leeds north and south' is the wordplay.
'movement in' indicates an anagram (I've seen this in other clues).
'north' becomes 'N' (abbreviation).
'and' means one lot of letters go next to another.
'south' becomes 's' (abbreviation).
'leeds'+'n'='leedsn'
'leedsn' with letters rearranged gives 'endles'.
'endles'+'s'='ENDLESS'
(Other definitions for endless that I've seen before include "Infinite, perpetual" , "Potentially boring" , "Occurring so frequently so as to seem uninterrupted" , "without finishing" , "no boundaries" .)