Car good for short journeys, no good for beach (9)
I believe the answer is:
runaround
'car good for short journeys' is the definition.
'no good for beach' is the wordplay.
'no' is a deletion indicator.
'good for' becomes 'g' (I've seen this in other clues).
'beach' becomes 'runaground' (run aground).
'runaground' with 'g' taken away is 'RUNAROUND'.
(Other definitions for runaround that I've seen before include "small car" , "deception" .)