Healthy expression of group intent (4)

I believe the answer is:

well

I'm a little stuck... Click here to teach me more about this clue!

'healthy' is the definition.
(similar in meaning)

I can't explain the remainder of the clue.

(Other definitions for well that I've seen before include "Very possibly" , "rise up" , "Spring - in good health" , "How one might like one's steak?" , "Spring - in good condition" .)

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app