Current fashion? (5,8)
'current fashion?' is the definition.
The answer and definition are not the same part of speech.
'current fashion?' is the wordplay.
'current' becomes 'power'.
'fashion?' becomes 'dressing' ().
'power'+'dressing'='POWER-DRESSING'
(Other definitions for power dressing that I've seen before include "Professional women's fashion style, designed to project authority" , "(Of women) donning clothes to look authoritative" , "Style perhaps adopted by women executives" , "Female fashion style designed to give an impression of confidence and efficiency" , "Wearing of severely tailored suits by some women executives" .)
(Other definitions for fad that I've seen before include "Temporary vogue or craze" , "Short-lived craze" , "Affectation" , "A passing fashion or craze" , "transient success" .)