Emotion (9)
'emotion' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for sentiment that I've seen before include "Emotional thought" , "Tender or romantic emotion" , "General feeling" , "Mawkishness" , "View, opinion, feeling" .)
'emotion' is the definition.
(I have seen 'Ardent emotion' mean 'passion' so perhaps 'emotion' could also mean 'passion')
This is the entire clue.
(Other definitions for passion that I've seen before include "fire" , "Great emotion" , "Ardent emotion" , "Fervent love" , "thing one really cares about" .)