If a man is 'worth his salt' he is-

• If a man is 'worth his salt' he is highly respected and competent

• Worth one's salt
- English Meaning: Highly respected and competent; good or competent at the job or profession specified.
- Bangla Meaning: দক্ষ; কোন কাজে দক্ষ বা পারদর্শী।

• Ex. Sentence: A teacher worth her salt inspires students.
- Bangla Meaning: একজন যোগ্য শিক্ষক শিক্ষার্থীদের অনুপ্রাণিত করেন।

Source:
1. Cambridge Dictionary.
2. Oxford Dictionary.