Send payment the wrong way for hour-glass (5)
I believe the answer is:
timer
'hour-glass' is the definition.
I can't judge whether this definition defines the answer.
'send payment the wrong way' is the wordplay.
'send payment' becomes 'remit' (I've seen this before).
'the wrong way' says the letters should be written in reverse.
'remit' backwards is 'TIMER'.
'for' is the link.
Can you help me to learn more?
(Other definitions for timer that I've seen before include "Watch, for example" , "Clock or watch" , "Clock, say" , "Trigger mechanism" , "Preset mechanisation to activate a device" .)