Tip the needy, say (4)
I believe the answer is:
pour
'tip' is the definition.
The answer and definition can be both to do with motion as well as being verbs in their base form.
Perhaps there's an association between them I don't understand?
'the needy say' is the wordplay.
'the needy' becomes 'poor' (I've seen this before).
'say' shows a homophone (sound like).
'poor' sounds like 'POUR'.
Can you help me to learn more?
(Other definitions for pour that I've seen before include "Teem" , "Cause to flow or rain heavily" , "bucket" , "Dispense (e.g. tea)" , "Cause to flow in a stream" .)