Plans to stop in. Isn’t dressed (7)
I believe the answer is:
intends
'plans' is the definition.
(intending is a kind of planning)
'stop in isn't dressed' is the wordplay.
'stop' becomes 'end' ('end' can be a synonym of 'stop'**).
'in' is an insertion indicator.
'dressed' indicates an anagram ('dress' can mean 'prepare').
'isnt' anagrammed gives 'ints'.
'end' going into 'ints' is 'INTENDS'.
'to' acts as a link.
(Other definitions for intends that I've seen before include "Has as a purpose" , "Aims" , "Plans, means" .)