Crossword Genius

Whereat there's a solid use for water (5)

Ross

I believe the answer is:

lidos

I'm a little stuck... Click here to teach me more about this clue!

'whereat there's a' is the definition.
I can't tell whether this defines the answer.

'solid use for water' is the wordplay.
'solid' can be anagrammed to 'LIDOS'.
Though, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for lidos that I've seen before include "bathing beaches" , "Open-air swimming pools" , "which swimmers may use" , "Open air swimming pools" , "leisure facilities" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app