The album was written largely in the wake of Spirit's work on the soundtrack to the 1968 film Model Shop. Several of the band members have said that they felt there wasn't enough time for developing the album after releasing two albums in 1968, recording a soundtrack and constantly touring. The album contains "So Little Time To Fly", "Dark Eyed Woman" and "New Dope In Town", as well as three instrumentals.
Reviewing for The Village Voice in 1969, Robert Christgau called Spirit "a talented group with guts of cellophane" and lead vocalist/guitarist Randy California "the rock equivalent of the cool, progressive jazzman of the '50s". He commended the album for focusing the better songs on side one of the LP, saying its "mostly excellent rock" shows Spirit "can be very good", but found songs like "Ice" on side two indicative of how "incredibly empty" the band can be as well.[1]
The original Ode Records recording of Clear would be later restored by Sony in 1996. The second edition includes both sides of the "1984" single, the song "Fuller Brush Man" (which hasn't appeared elsewhere), and a piece entitled "Coral", which is also available on the Model Shop soundtrack but is present here in an elaborately produced version. "Coral" is a dedication to groupie Coral Shields, the 11-year-old sister of Sable Starr whom Randy California was dating at the time.