Combinatorial auctions have been suggested as a mean to raise efficiency in multi-item negotiations with complementarities as they can be found in procurement, in energy markets, in transportation, and for the sale of spectrum auctions. Anonymous linear ask prices are desirable and sometimes even essential for many of these applications. The Combinatorial Clock (CC) auction [4] has become very popular in these markets for its simplicity and as it "produces highly usable price discovery, because of the item prices (linear pricing)" [1]. Unfortunately, the CC auction fails to lead always to efficient outcomes, and there is no theory on equilibrium bidding strategies in such auctions. Given the importance of the CC auction in the field, it is desirable to better understand this auction format.