Hubble chews caramel in coastal shelter (5,8)

I believe the answer is:

beach umbrella

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'hubble chews caramel' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'coastal shelter' is the wordplay.
'coastal' becomes 'beach' (I can't justify this - if you can you should give a lot more credence to this answer).
'shelter' becomes 'umbrella' (umbrella is a kind of shelter).
'beach'+'umbrella'='BEACH UMBRELLA'

'in' is the link.

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I've seen this clue in The Irish Times.

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