Does it trundle up the beach? (6)
I believe the answer is:
roller
'does it trundle up the beach?' is the definition.
I can't judge whether this definition defines the answer.
'trundle up the beach?' is the wordplay.
'trundle' becomes 'roll' (I've seen this in another clue).
'up the beach?' becomes 'er' (I can't justify this - if you can you should believe this answer much more).
'roll'+'er'='ROLLER'
Can you help me to learn more?
(Other definitions for roller that I've seen before include "Cylinder for curling the hair" , "Sea wave; brilliant bird" , "road maintenance vehicle" , "Large wave or hair curler" , "Wave; castor; cylinder" .)