Possible Clues:

• Close and commonly bald
• Close shaven, trimmed on top
• Still bald, scratching head
• Stuffy, close
• Close shaven, cutting head
• Stuffy, unventilated
• Close as Walford’s Phil and Grant Mitchell?
• Broadcast fewer programmes that could be seen as stuffy
• Close, don't open without locks
• Stuffy, like follicularly challenged Cockneys?