Related Clues:

• Sign it? I only will admit firing
• Mechanism firing up an internal-combustion engine
• This will give you a start or get you fired?
• Firing international, into gin unfortunately
• Fire engine must need this
• One getting fired for scrubbing Alps from oil paintings
• Some sign it ionised, creating spark
• Combustion's start
• Mechanism that fires the fuel in an internal-combustion engine
• Motorist's starting point?
• Design it? I only should cover lighting