The spelling of the word "leans it" can be explained through the International Phonetic Alphabet (IPA). The first sound is /l/ which is a voiced alveolar lateral approximant. The following sound is /i:/ which is a long vowel sound, pronounced as "ee". The third sound is /n/ which is a voiced alveolar nasal. The fourth sound is /z/ which is a voiced alveolar fricative. Finally, the last sound is /ɪt/ which is a reduced form of "it", pronounced as "ih-t". Therefore, "leans it" is pronounced as /li:ns zɪt/.