Finding this crossword exceptionally difficult today! Not au fait with hippie terms.
29a. Pertaining to hippie experience or consciousness?(11)?s?????e?i?
19a. A breakfast item frequently (7,3) no letters
14a. Hippie activity (5,5)p?a?e. ?a?c?
8d. Hippie Philosophy (4,4)?r?e ?o??
28a. Confection, oddball(9)??????a?e
Many thanks