He typed clerkishly on the keyboard, making numerous mistakes.

The clerkess greeted the customers with a smile.

The clerkesses at the hotel were very helpful and efficient.

The clerkling was tasked with organizing the files.

The clerklings were busy organizing the files.

He has a clerkly appearance.

He wrote clerkly, using precise language and citing numerous sources.

The new store is clerkless, with all transactions being done through self-checkout machines.

His clerkliness was well-known among his peers.

She has a clerky appearance.