The term 'put on the line' can be interpreted in a variety of ways, and the crossword solutions reflect this. The solutions ENDANGER (8 letters), BET (3 letters), DREW (4 letters), STAKED (6 letters), IMPERIL (7 letters), STAKE (5 letters), WAGER (5 letters), RISK (4 letters), WAGERED (7 letters), AIRED (5 letters), RISKED (6 letters), ADRY (4 letters), DRIED (5 letters), AIRDRY (6 letters), and AIRDRIED (8 letters) all refer to the idea of putting something at RISK or in danger. ENDANGER and IMPERIL are the most direct references to this concept, while BET, WAGER, and WAGERED refer to the idea of gambling or betting on something. DREW, STAKED, STAKE, AIRED, ADRY, DRIED, AIRDRY, and AIRDRIED all refer to the idea of drying something out, which is often used as a metaphor for putting something at RISK.