Tony Blair was last night accused of 'having something to hide' after he refused to reveal whether businessmen embroiled in the 'cash-for-honours' affair were entertained at Chequers. [I can exclusively confirm that Tone "Call me Tony" Blair of "Myrobella" (48) most definately has something to hide. Details soon.]

Downing Street was criticised for blocking the publication of a list of who had been invited to private dinners at the Prime Minister's country residence in 2006.

It would cover the period since allegations first surfaced that Labour had accepted secret loans from four wealthy businessmen who were later nominated for peerages.

Liberal Democrat MP Norman Lamb wanted to know if stockbroker Barry Townsley, property developer Sir David Garrard, Priory Clinics chief executive Dr Chai Patel or curry tycoon Sir Gulam Noon had been invited to Chequers.

But No 10 has repeatedly delayed handing the information to Mr Lamb, who used freedom of information laws to force No 10 to release previous guest lists.

Mr Lamb said: 'I'm afraid Downing Street's whole attitude leads me to think they have something to hide.

'It just encourages suspicion of their motives and they will be guilty until proven innocent.'

He was told last August that the information for 2006 would be released 'at the end of the year'.

In December he was told there had been a 'clerical error' in the letter and the information would be published at the end of the financial year - on April 5.

But yesterday (Sun) Downing Street said it would hand over the guest lists before the end of the Parliamentary year - on July 26.

This has sparked fears that the information will be withheld until after Blair steps down as Prime Minister - which could be as early as July.