Here's how you can clarify the meaning in a sentence:
* Asawa a babai: This literally translates to "wife woman" and is a clear way to specify a female spouse.
* Asawa a lalaki: This translates to "wife man" and is a clear way to specify a male spouse.
You could also use the words kapareha or kasangay for "partner" or "spouse" in a more general sense, which can be used for either a husband or wife.