Have a crack and Peg away

Peg away and have a crack are semantically related in attempt to achieve something topic. In some cases you can use "Peg away" instead a verb phrase "Have a crack".

Peg away verb - To devote serious and sustained effort.

Have a crack and peg away are semantically related in attempt to achieve something topic. Sometimes you can use "Have a crack" instead a verb "Peg away".