Instinctive feelings, never quite the best for a girl (5)
I believe the answer is:
vibes
'instinctive feelings' is the definition.
'vibes' can be an answer for 'feelings' (I've seen this before). I am not sure about the 'instinctive' bit.
'never quite the best for a girl' is the wordplay.
I cannot quite understand how this works, but
'girl' could be 'vi' (short for Violet) and 'vi' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for vibes that I've seen before include "Percussion instrument similar to a xylophone" , "Feelings that seem to emanate" , "Feelings (colloq.)" , "Informal mental or emotional communications" , "Feelings sensed intuitively" .)