Remove water from bottom of disconnected shower (5)

I believe the answer is:

drain

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

'remove water' is the definition.
'drain' can be an answer for 'remove' (thesaurus). I'm unsure of the 'water' bit.

'bottom of disconnected shower' is the wordplay.
'bottom of' indicates one should take the final letters.
'shower' becomes 'rain' (rainfall).
The last letter of 'disconnected' is 'd'.
'd'+'rain'='DRAIN'

'from' is the link.

Can you help me to learn more?

(Other definitions for drain that I've seen before include "Waste channel/pipe" , "Exhaust (of liquid)" , "Something using up resources" , "Bleed" , "Waste channel" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app