Possible Clues:

• If really necessary
• If forced
• Where absolutely necessary answer cheers press
• Bug dug centrally in timber if really required
• Volunteers climbing up in tree if necessary
• Bathroom accessory's available in gold, mum, if really necessary
• Are press giving coverage to part of the army? Only if necessary
• If necessary, answer cheers press
• A drunk will swap front of lounge for small bar if really necessary
• Just about - if a big effort were made