Related Clues:

• One must admit that this can be given (6)
• A useful public service
• Gain it to get in
• Might an 'en try to gain this?
• The SC with aces is able to gain this to get in
• An outburst, but not one that's way-out, by the sound of it
• To enter, follow the directions to Assisi then east towards the ship
• Type of security code
• Maybe gas company's 'ineffectualness' fine is dropped
• Admission by experts admitting cold snap's starting
• Awkward cases caught in a doorway?
• It enables entries with top cards, holding clubs and spades
• Approach - entry
• Means, or right, of approach
• Entry (code)