Does it stimulate you to be a bit nice? (5)
I believe the answer is:
tonic
'nice?' is the definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?
'does it stimulate you to be a bit' is the wordplay.
I cannot really see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found within the answer.
'bit' could be 'o' (resembles 0, a binary digit or bit) and 'o' is found in the answer.
The remaining letters 'nic' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tonic that I've seen before include "A pick-me-up drink, nice with gin" , "__water; gin mixer" , "Quinine drink; keynote" , "An enlivener" , "medicinal preparation" .)