Stick lands regularly at this spot (6)
I believe the answer is:
adhere
'stick' is the definition.
(to adhere to something is to stick to it)
'lands regularly at this spot' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'at this spot' becomes 'here' (at this location or spot).
The alternate letters of 'lands' are 'ad'.
'ad'+'here'='ADHERE'
(Other definitions for adhere that I've seen before include "Keep" , "Stick L" , "Stick like a stamp" , "Stick to, remain loyal" , "Stick to or continue faithful" .)