Pipe close to overhead shower (5)
I believe the answer is:
drain
'pipe' is the definition.
(I know that drain is a type of pipe)
'close to overhead shower' is the wordplay.
'close to' says to take the final letters (the close/ending of).
'shower' becomes 'rain' (synonyms).
The final letter of 'overhead' is 'd'.
'd'+'rain'='DRAIN'
(Other definitions for drain that I've seen before include "Siphon off" , "Drink dry" , "Waste channel" , "Deprive gradually of strength or resources" , "Deprive of vitality" .)