On the shelf in a seaside resort (5)
I believe the answer is:
aside
'on the shelf' is the definition.
I can't judge whether this definition defines the answer.
'in a seaside resort' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ASIDE' is hidden within 'seaside resort'.
Can you help me to learn more?
(Other definitions for aside that I've seen before include "private" , "In reserve -- confidential remark" , "Actor's covert line" , "Out of other people's hearing" , "Digression" .)