Sunday Mail Magazine

[AJ007]

looking for some help for my Gran with the following

40d relishing a challenge
- o - p - t - t - - -
thought competitive?

31d being entirely familiar with (4,6,3)
- n - w - n - i - e - - -

63a thankless (10)
- - e - o - a - l -

thanks in advance, much appreciated
AJ

[ubasses]

40 competitive

[boxtops]

40 I agree competitive

31 seems to start with Know... (perhaps)

[cancross]

31 know inside out

[ubasses]

know inside out

[AJ007]

thanks very much guys, much appreciated.

[tommy-h]

only word that fits letters inexorable-unyielding-does not fit the clue well.

[bother2]

63a unenviable