Some sunbathe? Sit at eateries? Don’t all rush! (8)
I believe the answer is:
hesitate
'don't all rush' is the definition.
(hesitating means not rushing)
'some sunbathe? sit at eateries?' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'HESITATE' is hidden within 'sunbathe sit at eateries'.
(Other definitions for hesitate that I've seen before include "Show indecision" , "He who does it may be lost" , "Pause, waver" , "Pause in doubt, show uncertainty" , "Do this perhaps to be lost" .)