\documentclass{article}

\usepackage[colorlinks]{hyperref}
\usepackage[sanitize={description=false}]{glossaries}

\makeglossaries

\renewcommand{\glsseeitemformat}[1]{\textsc{\glsentryname{#1}}}

\newglossaryentry{pear}{name=pear,
description={an oddly shaped fruit}}

\newglossaryentry{apple}{name=apple,
description={firm, round fruit},
see=[see also]{pear}}

\newglossaryentry{banana}{name=banana,
description={a yellow fruit with an even odder shape than
a \gls{pear}}}

\newglossaryentry{fruit}{name=fruit,
description={sweet, fleshy product of plant containing seed}}

\glssee{fruit}{pear,apple,banana}

\begin{document}
\gls{pear}, \gls{apple} and \gls{banana}.

\printglossaries

\end{document}
