The "explicit" label typically refers to the film's "Unrated" status or its inclusion of scenes previously censored, such as:
The film is known for its frank depiction of pagan rituals, sensuality, and nudity—most famously Britt Ekland’s "Willow’s Song" dance. The "Explicit" tag in your query likely refers to these uncut sequences that were censored in earlier theatrical runs. thewickerman1973thefinalcutexplicit1080 top