Worry rising with house submerged in lake (5)

I believe the answer is:

tahoe

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'submerged in lake' is the definition.
'tahoe' can be an answer for 'lake' (Lake Tahoe in the USA). I am not sure about the 'submerged in' bit.

'worry rising with house' is the wordplay.
'worry' becomes 'eat' (something worrying may eat someone up).
'rising' says the letters should be written in reverse (going up in a down clue).
'with' means one lot of letters goes inside another.
'house' becomes 'ho' (abbreviation for house).
'eat' written backwards gives 'tae'.
'tae' enclosing 'ho' is 'TAHOE'.

Can you help me to learn more?

(Other definitions for tahoe that I've seen before include "US lake" , "the Nevada/California border area" , "Lake/desert resort on the California-Nevada border" , "Mountain lake" , "Lake in Sierra Nevada mountains" .)

I've seen this clue in The Guardian.

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