Thin fabric? Not socially acceptable to stare (4)
I believe the answer is:
Here is my best explanation:
'stare' is the definition.
(gaze is a kind of stare)
'thin fabric? not socially acceptable' is the subsidiary indication.
'thin fabric?' becomes 'gauze' (I've seen this before).
'not' suggests deleting specific letters.
'socially acceptable' becomes 'u'.
'gauze' with 'u' removed is 'gaze'.
'to' is the link.
(Other definitions for gaze that I've seen before include "Steady and intent look", "Look steadily", "A long fixed look", "Fixed look", "Look long and steady", "Long fixed look", "Intense stare", "Look vacantly", "Look long and hard" and "Stare fixedly".)