Like some beaches in Skegness and Yarmouth (5)
I believe the answer is:
sandy
'like some beaches' is the definition.
(I've seen this in another clue)
'in skegness and yarmouth' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SANDY' is hidden in the letters of 'skegness and yarmouth'.
(Other definitions for sandy that I've seen before include "Alexander (shortened)" , "Alexander (abbrev.)" , "Boy's or girl's name -- like a beach" , "Hair colour" , "Ginger" .)